Today's Mind-blower

10 Bizarre Treatments Doctors Used to Think Were Legit

From tobacco smoke enemas to whirling chairs, doctors have tried almost everything to cure human disease.

    • 10 Common Sayings You're Probably Saying Wrong

      people

      10 Common Sayings You're Probably Saying Wrong

      Maybe you could care less about grammar. After all, it's a doggy-dog world, and you're OK as long as people know what you mean, right?

    • Top 10 Germs on Your Smartphone

      science

      Top 10 Germs on Your Smartphone

      Spend your life on your smartphone and you may be sending yourself to the sick bed. Here's a list of some of the nasty germs that could be lurking on your mobile device.

    • What if everyone on Earth spoke the same language?

      science

      What if everyone on Earth spoke the same language?

      Would the people of the world get along better if they spoke the same language? Or would it just be easier for us to hate each other?

    • How the Rimac Concept One Will Work

      auto

      How the Rimac Concept One Will Work

      Some twentysomethings like to party. Others design and build million-dollar sports cars. That's exactly what Mate Rimac, founder of Rimac Automobili, accomplished with his Concept_One supercar.

    • 10 Historically Inaccurate Movies

      history

      10 Historically Inaccurate Movies

      These films look like blooper reels when you compare them to history books. From anachronisms to flat-out lies, creative license reigns in this list.

    • 10 Mad Royals in History

      history

      10 Mad Royals in History

      Insanity on the throne was more common than you might think. Navigating both royal whim and a complete lack of treatment for mental illnesses was also no easy task. See what happened to these 10 mad royals.

    • 10 Things You Should Never Throw Away

      home

      10 Things You Should Never Throw Away

      There are things we consciously recycle, such as used clothing, and there are things we toss without a second thought, like foil and rubber bands. But the latter have uses you may never have dreamed of.

    • 10 Trade Secrets We Wish We Knew

      money

      10 Trade Secrets We Wish We Knew

      Protected by legal agreements, fail-safes and vaults, the world's most valuable trade secrets rake in millions of dollars for their owners. Here are 10 lucrative legends.

    • How Sleep Deprivation Works

      health

      How Sleep Deprivation Works

      You know you're not yourself when you don't get enough sleep, but what really happens to your body when the sandman refuses to visit?

    • 10 Ways Space Is Trying to Kill You

      science

      10 Ways Space Is Trying to Kill You

      Those eager beavers who want to sign up for the one-way ticket to Mars had better read this first. You might appreciate how special – and rare – life on Earth really is!

    • Top 10 Things Your Nails Say About Your Health

      health

      Top 10 Things Your Nails Say About Your Health

      Whether trimmed or long, polished or plain, your nails say a lot about the state of your health. What warning signs are literally at your fingertips?

    • 10 Gadgets That Really Should Be Obsolete By Now

      electronics

      10 Gadgets That Really Should Be Obsolete By Now

      Technology is ever-evolving, so gadgets that were cutting edge just a few years ago are already obsolete. Here are 10 that linger, though we'd happily eulogize them.

    • 10 Failed Google Projects

      computer

      10 Failed Google Projects

      Most people think of Google as a giant juggernaut of Internet success. But even the company behind the world's most popular search engine has had its share of blunders.

    • How Nuclear Bombs Work

      science

      How Nuclear Bombs Work

      Nine countries can now deliver nuclear warheads on ballistic missiles. At least three of those countries -- the U.S., Russia and China -- could strike any target anywhere in the world. Do you know what makes a nuclear bomb so deadly?

    • 10 Venomous Creatures in Your Backyard

      animals

      10 Venomous Creatures in Your Backyard

      You don't have to live in some exotic, tropical environment to find a venomous critter. They live all over the world, and some may be closer than you think.

    • How do painkillers know where you hurt?

      health

      How do painkillers know where you hurt?

      As children, we couldn't use fancy words to describe our scrapes, but we could point and wince, and somehow the medicine knew where we hurt. It still does. How?

    • How TV Animation Works

      electronics

      How TV Animation Works

      Typically it takes nine months or more to create one half-hour of an animated show, while you can push out a live action sitcom in just a few weeks. Learn about all the steps involved in the process of making an animated TV show.

    • How Royalty Works

      history

      How Royalty Works

      Royalty calls to mind impossible wealth, power and privilege -- and maybe a breath of scandal. Do kings and queens simply sit on their thrones with ermine robes and scepters?

    • Stuff Mom Never Told You: 7 Bizarre Back to School Supplies

      shows

      Stuff Mom Never Told You: 7 Bizarre Back to School Supplies

      Cristen finds the strangest stuff in kids' backpacks these days.

    • The 10 Most Dangerous Sharks

      animals

      The 10 Most Dangerous Sharks

      The most dangerous shark is the one speeding toward you, right? But if you had to pick a shark to swim with, it wouldn't be one of these bad boys.

    • 10 Worst Calls in Sports History

      entertainment

      10 Worst Calls in Sports History

      OK, fine. Referees and umpires are human beings who make human mistakes. But why do they always have to make their human mistakes against our team?

    • 10 Threats You Should Never Try to Outrun

      adventure

      10 Threats You Should Never Try to Outrun

      Fight and flight aren't the only possible responses to an emergency situation. In some cases, flight may actually make the problem worse. In which situations is running a really bad idea?

    • Quiz: What Doomsday Scenario Are You?

      science

      Quiz: What Doomsday Scenario Are You?

      We all secretly know we're going to die in a world-ending catastrophic event. Care to make a guess about what doomsday scenario most fits your personality?

    • How Ebola Works

      health

      How Ebola Works

      Headlines about Ebola's spread through West Africa – and patients being brought to Atlanta for treatment – have people worried about the disease. But Ebola isn't that easy to get, and movies like "Outbreak" exaggerate its symptoms.

    • 10 Ways to Organize Your Home Office by Monday

      home

      10 Ways to Organize Your Home Office by Monday

      At least part of your life revolves around your home office. That life can get chaotic in a hurry if your office is a mess. Don't worry, though: If you've got 48 hours and a little patience, we can fix that for you.

    • 10 Responsibilities of a Construction Project Manager

      home

      10 Responsibilities of a Construction Project Manager

      More than just a couple nails here and a few screws there, a construction project is a complex commercial enterprise that draws on a variety of workers, tools and materials. At the helm is a construction project manager.

    • 10 Common Skin Irritants

      health

      10 Common Skin Irritants

      All kinds of things can irritate your skin. It could be a chemical, a surface or a substance to which you're allergic. What irritants should you avoid, and how do you treat these itchy problems?

    • Top 10 Safe Driving Tips

      auto

      Top 10 Safe Driving Tips

      We've been taught how to drive safely, but the number of automobile accidents and fatalities remains high. Let's get back to basics and review these 10 safe driving tips.

    • 10 Everyday Things You're Probably Doing the Hard Way

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      10 Everyday Things You're Probably Doing the Hard Way

      Despite our desire for ease, studies show that we may be able to make ourselves smarter by doing things the hard way. But why make life trickier than it needs to be?

    • 10 True Stories of Survival Cannibalism

      adventure

      10 True Stories of Survival Cannibalism

      You're stranded on a boat at sea, no substantial food or water for days, living off collected rain and already having lustily consumed the leather brim of your hat. That's when you realize there's a huge chunk of meat sitting right next to you.

    • 10 Historically Inaccurate Movies

      history

      10 Historically Inaccurate Movies

      These films look like blooper reels when you compare them to history books. From anachronisms to flat-out lies, creative license reigns in this list.

    • 10 Amazing Ancient Egyptian Inventions

      science

      10 Amazing Ancient Egyptian Inventions

      There may be no greater tribute to a society's ingenuity and vision than the Great Pyramid of Giza in Egypt. What other cool stuff did the ancient Egyptians invent?

    • 10 Reasons Why Tesla Is a Scientific God

      science

      10 Reasons Why Tesla Is a Scientific God

      He had patents and pigeons galore. His role in history books could be more. So come ye science fans, and read up on your Tesla facts, myths and lore.

    • 10 iPad Apps for Teaching Kids to Read

      computer

      10 iPad Apps for Teaching Kids to Read

      Children take to iPads in much the same way they do to building blocks, dolls and trucks. Capitalize on that affinity by downloading these 10 apps to help teach your child to read.

    • Top 10 Tips for Moisturizing Eczema

      health

      Top 10 Tips for Moisturizing Eczema

      If you've never dealt with a bout of eczema, consider yourself lucky. Those who suffer through its itchy hell (and suffer they do) know that the key to calming the urge to scratch may lie in how you treat your skin.

    • 10 Conspiracy Theories About the JFK Assassination

      history

      10 Conspiracy Theories About the JFK Assassination

      Sixty-one percent of Americans think others beside Lee Harvey Oswald were involved in JFK's murder, according to a 2013 Gallup poll. While this is the lowest percentage in nearly 50 years, it's still very high. What are the leading conspiracy theories?

    • 10 Most Famous Architects Who Ever Lived

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      10 Most Famous Architects Who Ever Lived

      We see buildings pop up and get torn down all the time, but some structures (and the masters who designed them) were built to last. Who are some of the most inspiring architects in history?

    • 10 Classic Toys That Could Kill You

      entertainment

      10 Classic Toys That Could Kill You

      Whether you grew up in the carefree '50s or the safety-conscious '90s, you probably know of a toy that was lots of fun and, in hindsight, flat-out dangerous. Most are off the shelves now, but this list might bring back memories.

    • 10 Common Nightmares

      health

      10 Common Nightmares

      Although unpleasant, nightmares are essential to our dreams. Nightmares are a manifestation of other common feelings like stress and anxiety. They aren't as straight forward as they seem, but there are several common nightmares most of us experience.

    • Top 10 Retail Markups

      money

      Top 10 Retail Markups

      Everyone knows that the things we buy at retail are marked up so vendors can make a profit. But the final cost depends on what you're buying -- and where you buy it.

    • Top 10 Foods for Beautiful Skin

      health

      Top 10 Foods for Beautiful Skin

      Selecting the right foods can help brighten your complexion from the inside out or the outside in. So should you skip the beauty counter and head for the grocery store instead?

    • Top 10 Tips for Adjusting to Retirement

      health

      Top 10 Tips for Adjusting to Retirement

      After years of a structured schedule, the hours afforded by retirement can seem endless to some retirees. It's possible to make your retirement years happy and healthy -- you just need to approach things a bit differently.

    • 10 Free Date Activities in the Great Outdoors

      health

      10 Free Date Activities in the Great Outdoors

      Strapped for cash and need some good ideas for a date? Just take a quick look out your window -- the great outdoors offers an unlimited number of spots for fun, romantic dates that won't cost a penny.

    • 10 Creeping Vines that Provide Privacy

      home

      10 Creeping Vines that Provide Privacy

      While trees and shrubs can certainly create a living barrier within your yard, creatively placed vines can give you that feeling of privacy, your own personal retreat.

    • Top 10 Most Expensive Houses in the World

      home

      Top 10 Most Expensive Houses in the World

      For most of us, hardwood floors and stainless steel appliances seem like nice upgrades. But the world's most expensive houses have heated driveways, private gyms and movie theaters. Jealous yet?

    • Top 10 Tips for Moisturizing Oily Skin

      health

      Top 10 Tips for Moisturizing Oily Skin

      If you have oily skin, you've probably spent a great deal of time trying to make it look less greasy. So why on Earth would anybody with oily skin need to moisturize? Think of it this way: Moisture is about water, not oil.

    • Top 10 Speeds Clocked on the Autobahn

      auto

      Top 10 Speeds Clocked on the Autobahn

      A public road, in a notoriously buttoned-up country, where people can drive as fast as their engines and nerves will allow. It sounds almost too good to be true, doesn't it? Learn about 10 vehicles that have been pushed to their limits on this fabled road.

    • 10 Most Spectacular Lottery Burnouts

      entertainment

      10 Most Spectacular Lottery Burnouts

      Winning the lottery seems part of everyone's daydream. But many winners say it actually becomes a nightmare. Why does it all go wrong? Here are some of the most spectacular flameouts we've come across.

    • 10 Reasons You Should Have Lemons in Your Fridge

      recipes

      10 Reasons You Should Have Lemons in Your Fridge

      Whether you're baking sugar cookies or garnishing a frosty glass of sparkling water, you'll need a lemon. This tart citrus fruit should always be stocked in your fridge.

    • How can parts of Canada be 'missing' gravity?

      science

      How can parts of Canada be 'missing' gravity?

      For more than 40 years, scientists have tried to figure out what's causing large parts of Canada to be "missing" gravity. The force of gravity around Hudson Bay is lower than surrounding areas. Learn about two theories that may explain the phenomenon.

    • Can you substitute tomato paste for tomato sauce?

      recipes

      Can you substitute tomato paste for tomato sauce?

      Next time you're at your local grocer, cruise down the canned vegetable aisle and take a look at how many ways they've come up with to can a tomato. Diced, stewed, whole, sauced. But can one substitute for the other? After all, they're all tomatoes, right?

    • How long do brake pads last?

      auto

      How long do brake pads last?

      Mechanics and manufacturers have a loosely agreed upon mileage range for most brake pads. Yet the lifespan of a brake pad depends on a set of variables ranging from driving style to the laws of physics.

    • What is clean coal technology?

      science

      What is clean coal technology?

      Clean coal -- isn't that an oxymoron? Not anymore. See how energy companies are using coal in cleaner ways to generate massive amounts of electricity. Alternative fuels may be making headway, but coal isn't used up yet. Find out why.

    • What are the white dots on my nails?

      health

      What are the white dots on my nails?

      You notice a white dot on your fingernail. You try to scrub it off and realize the little white dots are not paint; they're actually part of your nail. What could they be?

    • Are carrots really good for your eyesight?

      health

      Are carrots really good for your eyesight?

      It's another one of those things your parents told you to persuade you to eat vegetables. But besides turning orange, if you ate a bunch of carrots, would you develop superhuman vision?

    • How early can you test for pregnancy?

      health

      How early can you test for pregnancy?

      Finding out if you're pregnant is an exciting process, but waiting for it to happen can really try a person's patience. Just how soon after having sex will you actually become pregnant? And how early can you test for pregnancy?

    • What if you traveled faster than the speed of light?

      science

      What if you traveled faster than the speed of light?

      The speed of light is like that annoying friend who beats you at every game. What would happen if humans one day surpassed the cosmic speed limit?

    • How do magic erasers get rid of stains?

      home

      How do magic erasers get rid of stains?

      Kids go crazy with the crayons? Co-workers leave a trail of scuff marks wherever they walk? Erasers made with melamine foam might be just what you need. How do these erasers get the stains out? And are they really magic?

    • Windows down or A/C on -- which is more fuel-efficient?

      auto

      Windows down or A/C on -- which is more fuel-efficient?

      Most of us have been told that driving with the air conditioner switched on uses a lot more fuel than simply rolling the windows down to cool off. But is that always true?

    • How often are septic tanks emptied, and where do the contents go?

      home

      How often are septic tanks emptied, and where do the contents go?

      Discussing what goes on in the bathroom is considered taboo in many social circles, but you should be having frank discussions about your waste if you own a septic tank. What's the protocol for dealing with fecal matter?

    • What is activated charcoal and why is it used in filters?

      science

      What is activated charcoal and why is it used in filters?

      Charcoal is carbon. Activated charcoal is charcoal that has been treated with oxygen to open up millions of tiny pores between the carbon atoms. What does this have to do with its absorbancy?

    • What did Albert Einstein invent?

      science

      What did Albert Einstein invent?

      No one can dispute that Albert Einstein is one of history's greatest thinkers. Although he isn't really known as an inventor, his ideas formed the basis for some of the greatest inventions ever devised. Here are a few of the man's most revolutionary discoveries.

    • Can you really escape an alligator if you run in a zigzag?

      adventure

      Can you really escape an alligator if you run in a zigzag?

      You've heard this adage a million times, and perhaps it even brings you comfort when you're in gator territory. But is it really helpful advice?

    • Which is more environmentally friendly: paper or plastic?

      science

      Which is more environmentally friendly: paper or plastic?

      Are multipurpose plastic bags or those throwback brown paper bags more environmentally friendly? That question could leave you speechless on your next trip to the grocery store.

    • What does it mean when someone has 20/20 vision?

      health

      What does it mean when someone has 20/20 vision?

      We all know 20/20 vision is a good thing, but just what do those numbers mean?

    • Do you really have to wait an hour after eating before swimming?

      health

      Do you really have to wait an hour after eating before swimming?

      When you've spent the day enjoying hot dogs off the grill, is it safe to jump right into the pool and show off your butterfly stroke? Or do you need to take a breather -- a 60-minute break, to be exact?

    • What is the universal edibility test?

      adventure

      What is the universal edibility test?

      If you eat hemlock you could die, and poison ivy isn't good for anyone. But dandelions make a nice salad. How do you tell the plants you can eat from the plants you can't?

    • How do I upgrade the version of Android on my tablet?

      computer

      How do I upgrade the version of Android on my tablet?

      We're happy to help you get the latest, tastiest version of the Android operating system. Here's how.

    • Has science explained life after death?

      science

      Has science explained life after death?

      Can you watch your body after you die? Near-death out-of-body experiences have left researchers wondering if life after death exists. How do scientists explain it?

    • How do money market accounts work?

      money

      How do money market accounts work?

      Money market accounts are popular because they usually pay higher interest than savings accounts. So what's the catch? Why shouldn't we all open one?

    • How long does a water pump last?

      auto

      How long does a water pump last?

      A water pump circulates coolant throughout your car's engine to keep everything running cool. It endures constant use -- if your engine is on, the water pump is working, too. But how long does it last?

    • What does octane mean?

      auto

      What does octane mean?

      Adding a chemical called tetraethyl to gasoline can significantly improve the gasoline's octane rating. So what does octane mean? Read on to find out.

    • Have people ever really eaten tapeworms for weight loss?

      health

      Have people ever really eaten tapeworms for weight loss?

      In recent history, rumors have circulated that if a person were to intentionally swallow a tapeworm the excess pounds would simply melt away. Could a tapeworm be the weight-loss solution that you're looking for?

    • Why do we dream?

      science

      Why do we dream?

      The human brain is a mysterious little ball of gray matter, and so is that recurring dream that you're an elf. Have scientists determined why we have dreams?

    • Famous Historical Couples

      history

      Famous Historical Couples

      When these men and women weren't composing poetry, combating the Great Depression or committing mass genocide, they were sharing their lives with their equally famous other halves. They may be revered (or reviled) for the deeds that secured their presence in history books and pop culture, but they were also loved.

    • Wolf Image Gallery

      animals

      Wolf Image Gallery

      Wolves may be a close relative of man's best friend, but we wouldn't recommend trying to befriend these wild canines. Check out this wolf image gallery to learn all about different wolf species and their habits.

    • Hog Wild: Harley-Davidson Logos Through the Years

      auto

      Hog Wild: Harley-Davidson Logos Through the Years

      Whether they’re roaring down the California coast or converging on Daytona Beach, hogs have generated some serious fans throughout their colorful history. See how the famous bike has changed its image over the years.

    • Freezing to Compete: Winter Sports Pictures

      adventure

      Freezing to Compete: Winter Sports Pictures

      Snow and ice don't slow down these athletes! Hit the slopes and check out these skiers, snowboarders, skaters, and other winter athletes in action.

    • Top 5 Sun Hats to Protect Your Face

      health

      Top 5 Sun Hats to Protect Your Face

      These five sun hats will protect your skin from sunburn and damage. See which hat fits your personal style and provides important sun protection.

    • Constellation Pictures

      science

      Constellation Pictures

      As every fledgling and seasoned astronomer knows, groups of stars that form some sort of arrangement are known as constellations. Peer at some of the most famous constellations that humans use to navigate, divine the future and tell stories.

    • Staying Healthy Pictures

      health

      Staying Healthy Pictures

      Being healthy is about more than just being free of germs. Get some tips on how to maintain a healthy lifestyle -- from the inside out.

    • Exotic Car Pictures

      auto

      Exotic Car Pictures

      This image gallery features some of the rarest, most expensive cars from makers like Ferrari, Lamborghini and Porsche. Pore over these beautiful cars and see the amazing features and amenities they offer. You can even pick the one you'll buy -- when you win the lottery.

    • Space Conspiracy Theory Pictures

      science

      Space Conspiracy Theory Pictures

      The moon landing is just one of many sources of debate among space conspiracy theorists. This image gallery wades into the discussion on this theory and a few others.

    • Night Vision Pictures

      electronics

      Night Vision Pictures

      Night vision is a popular military application with some very interesting civilian uses. Check out night vision equipment, peer through night vision goggles and learn about the technology with this image gallery.

    • Aborigine Pictures

      people

      Aborigine Pictures

      Aborigines are the world's oldest continuous culture, and they arrived in Australia between 40,000 and 60,000 years ago. Learn more with Aborigine pictures.

    • Mental Disorder Pictures

      health

      Mental Disorder Pictures

      Mental illness affects all kinds of people. With this image gallery, learn about mental illness and its associated problems along with famous people who have struggled with mental disorders.

    • Seven Wonders of the World Pictures

      adventure

      Seven Wonders of the World Pictures

      Scholars disagree about the first person to compile the list of the seven wonders, but most can agree that all of the items on this list are pretty incredible. Check out these amazing marvels, from the Great Pyramid of Giza to the Hanging Gardens of Babylon.

    • Relationship Tips Pictures

      health

      Relationship Tips Pictures

      Everyone knows relationships are not easy. They take time and commitment to make them succeed. Flip through these relationship tips pictures and learn a few pointers.

    • Truck Pictures

      auto

      Truck Pictures

      Truck owners can list countless reasons for their reliance on their truck. Peruse this image gallery and you'll see some of the coolest models out there, including classic models and cutting-edge concepts.

    • Plug-in Hybrid Pictures

      auto

      Plug-in Hybrid Pictures

      Plug-in hybrids are a unique breed of hybrid vehicle. Take a look at several different makes and models in this image gallery.

    • Hidden Home Dangers Pictures

      home

      Hidden Home Dangers Pictures

      Some home dangers aren't as obvious as others. Asbestos, lead and even urea-formaldehyde used as a resin could be in your home right now. Gas mask, anyone?

    • Indoor Gardens Pictures

      home

      Indoor Gardens Pictures

      Creating an indoor garden is one of those things that can remind you that anything's possible. Even if you don't have space for an outdoor garden, bringing some plants inside offers a lot of the same benefits and may enhance your home's decor.

    • Bermuda Triangle Pictures

      adventure

      Bermuda Triangle Pictures

      The Bermuda Triangle is an area in the Atlantic Ocean that has baffled scientists due to the high number of ship and plane crashes in the area. Delve into the disasters and the lore of this mysterious location.

    • Pet Pictures

      animals

      Pet Pictures

      There are many common and uncommon types of animals that make for good pets, including dogs, bearded dragons and cockatoos. Check out these pet pictures to gauge which kind might suit your needs best.

    • Famous Landmarks

      adventure

      Famous Landmarks

      From Stonehenge to the Taj Mahal, see pictures of some of the world's most stunning sites.

    • Classic to Artisan: Cupcakes and Cakes for a New Era Pictures

      recipes

      Classic to Artisan: Cupcakes and Cakes for a New Era Pictures

      A skilled decorator can turn a simple slab of cake into a masterpiece using frosting, fondant and the right embellishments. Discover new ways to turn cakes and cupcakes into fabulous works of art.

    • Cell Phone Pictures

      electronics

      Cell Phone Pictures

      Cell phones are more than just a communication convenience. They're also a fashion statement packed with technology. See the latest cell phones and how they're used in this cell phone image gallery.

    • Vegetable Pictures

      recipes

      Vegetable Pictures

      With dietary guidelines urging you to eat more vegetables, you may be searching for culinary inspiration. We'll serve up some gorgeous fresh produce in this gallery along with a few serving tips. Grab a fork and dig in!

    • Bill Gates Pictures

      computer

      Bill Gates Pictures

      Former Microsoft CEO Bill Gates has had a successful career – to put it mildly. He’s also had all sorts of adventures along the way, like jamming out with Slash during a session of Guitar Hero. Keep up with the mastermind in this image gallery.

    • Are you depressed or just sad?: The Major Depressive Disorder Quiz

      health

      Are you depressed or just sad?: The Major Depressive Disorder Quiz

      There are a lot of misconceptions regarding sadness and major depressive disorder (MDD). Knowing the differences, causes and treatments can lead to a better quality of life for you or someone you know. So how much do you really understand about the condition?

    • Slow Is Smooth, Smooth Is Fast: Military Sniper Quiz

      shows

      Slow Is Smooth, Smooth Is Fast: Military Sniper Quiz

      Military snipers have been great fodder for video games and movies, and they're just as interesting in reality. Test out your aim here on Stuff You Should Know's military sniper quiz.

    • Treat Me Right: The Cold Sore Quiz

      health

      Treat Me Right: The Cold Sore Quiz

      Cold sores can be a real nuisance. And since they're caused by a herpes virus, there's no cure -- just ways to get you through the latest flare-up. How much do you know about their cause and treatments?

    • Take this adrenaline rush travel quiz! Or, are you too chicken?

      adventure

      Take this adrenaline rush travel quiz! Or, are you too chicken?

      This quiz is best taken while climbing a mountain 2.5 miles underwater, surrounded by hungry sharks. But if you're sitting in front of your home computer, that's OK, too. We'll know just how tough you are by the end.

    • Fact or Fiction: Forklifts

      science

      Fact or Fiction: Forklifts

      Forklifts are an important part of our manufacturing industries. Think you know all there is to know about them? Take the quiz and find out how these powerhouses came about, how they lift our heavy stuff and where technology is taking them.

    • Dollars and Sense: Credit Score Challenge

      money

      Dollars and Sense: Credit Score Challenge

      Your credit score plays a large part in whether you can buy a house or car. In certain circumstances, it even affects whether you can get a job. But where does the number come from?

    • Who Said It? The Wrong Quote Quiz

      people

      Who Said It? The Wrong Quote Quiz

      Wasn't it P.T. Barnum who said, "There's a sucker born every minute?" Maybe, maybe not. Take our quiz to find out the real geniuses behind these well-known quotes -- and you won't be taken for a sucker!

    • The Ultimate Respiratory Problems Quiz

      health

      The Ultimate Respiratory Problems Quiz

      Those of us who are healthy often take the ability to breathe for granted. But there are many things that can go wrong with this essential system of the body, causing every breath to become a struggle.

    • The Ultimate Serial Killer Quiz

      people

      The Ultimate Serial Killer Quiz

      The topic of murder stirs up fear in almost any context, and serial killing tends to multiply that fear to the nth degree. Test your knowledge with this serial killer quiz.

    • Secrets of the Female Orgasm: How much do you know?

      lifestyle

      Secrets of the Female Orgasm: How much do you know?

      Until the 20th century the female orgasm was woefully misunderstood. While aspects of it still require demystification, it's no longer taboo to speak of it and discuss the fascinating discoveries of the last century. Not to mention searching for answers to our most intimate questions. Questions like, can a woman achieve the big O just by thinking about it? And why isn't there Viagra pill for women? Take a few minutes to test your female orgasm smarts.

    • Unique Addictions Quiz

      health

      Unique Addictions Quiz

      When we think of addictions, we think about drugs like heroin and cocaine. But what about addictions considered strange or unique? Let this quiz put your knowledge of addiction to the test.

    • Oh My Gosh, an Orgasm Quiz!

      health

      Oh My Gosh, an Orgasm Quiz!

      Oh, oh, it's magic. Yes, we're talking about orgasms, those physiological fireworks that erupt at the heights of sexual ectasy. But orgasms are also like snowflakes -- each one is a little bit different for different people. Test your knowhow of the Big O with this blizzard of facts about how the ultimate pleasurable sensation works in the human body.

    • Partly Cloudy With a Chance of Data Compromise: Cloud Security Quiz

      computer

      Partly Cloudy With a Chance of Data Compromise: Cloud Security Quiz

      Worried about your online passwords being compromised? Think you're playing it safe? Take the quiz to find out if you're doing all you can to protect your information online.

    • 1980s or 1990s tech?

      electronics

      1980s or 1990s tech?

      As far as gadgets go, the world completely changed during the 1980s and '90s. Think about it -- we started the '80s without VCRs, and by the end of the '90s, we had tiny cell phones in our pockets. Can you guess which of these iconic gadgets was introduced in which decade?

    • The Ultimate Survival Skills Quiz

      adventure

      The Ultimate Survival Skills Quiz

      Being stranded in the wilderness may make for a good movie, but in reality, it's a harrowing experience. Staying alive may require you to build a shelter, start a fire and even eat bugs for nourishment. Can you survive this quiz?

    • The Ultimate Relieving Back Pain Quiz

      health

      The Ultimate Relieving Back Pain Quiz

      The back is a complex part of the body and, among its many functions, it acts as a support structure for the spine. Back pain has various causes and pain can range from a soreness to a debilitating pain that severely limits your ability to function.

    • The Ultimate Happiness Quiz

      science

      The Ultimate Happiness Quiz

      Until pretty recently, happiness wasn't given too much thought in a scientific kind of way. It isn't an easy thing to pin down, especially when you're trying to make judgments on entire groups and populations. But the science of happiness has been booming lately, and we've found out a lot about who's happy, what makes us happy and how to become happy. Take this quiz to find out how much you know about the art of being happy.

    • Car Smarts: Clutches

      auto

      Car Smarts: Clutches

      Clutches are in many things that you see or use everyday. The car you drive is just one example. If you drive a manual transmission car, you may be surprised to find out that it has more than one clutch. If you drive an automatic transmission car, well, you have clutches, too. How much do you know about clutches?

    • The Ultimate Kissing Quiz

      people

      The Ultimate Kissing Quiz

      It can be a sign of love, grief or respect worldwide. Kissing is a natural act that gives millions of people physical and psychological satisfaction, but where did it originate? Why does it make us feel good?

    • TV Talk: Catchphrase Quiz

      people

      TV Talk: Catchphrase Quiz

      "Holy catchphrase, Batman." Our language is peppered with famous buzzwords and catchphrases we've picked up from television. See if you can match those words or phrases with the right show or character in our TV Talk quiz. If you can't, just fuggedaboutit.

    • Group X or Group Sex: What defines asexuality?

      health

      Group X or Group Sex: What defines asexuality?

      Although it might be hard to perceive of sex being a moot point, a mere mechanical operation meant for reproduction, self-identified asexuals assure that it's a reality. Test your knowledge of life sans sex with this asexuality quiz.

    • Mac, ENIAC or UNIVAC: The Computer History Quiz

      computer

      Mac, ENIAC or UNIVAC: The Computer History Quiz

      Computers are so much a part of our daily lives that it's sometimes hard to believe that only 60 years ago, they were rare, massive machines that required 10 men to run. How much do you know about the history of computing?

    • Diabetes Quiz

      health

      Diabetes Quiz

      Test your knowledge of diabetes by taking this 10-question quiz. You may be surprised at the answers.

    • Fact or Fiction: Baking Soda Benefits

      health

      Fact or Fiction: Baking Soda Benefits

      You may think of it as a common household cleaner, but baking soda is also a wonder product in the personal care realm. What can it do for your teeth, face and hair? Find out in this quiz!

    • The Fabulous Faraday Cage Quiz

      science

      The Fabulous Faraday Cage Quiz

      It was a grand day for humankind when the first Faraday cage came to life; these cages have given rise to all sorts of technological innovations. How much do you know about these wiry wonders?

    • De-Extinction: Bringing Extinct Animals Back to Life

      shows

      De-Extinction: Bringing Extinct Animals Back to Life

      Jonathan Strickland explains the scientific processes behind de-extinction, and explores the ethical concerns and drawbacks that might arise along the way.

    • Mysterious Disappearances

      shows

      Mysterious Disappearances

      From the Mary Celester to missing pilots, history is chock full of stories about unexplained disappearances. Join Matt and Ben as they take a look at some of history's top unexplained disappearances - and solve a few others.

    • Crop Circles

      shows

      Crop Circles

      Cereologists don't all agree on how crop circles form, but there are some wild theories out there, including freak weather and UFOs. Also, hoaxers confessed to making hundreds of circles. Tune in to learn more about theories surrounding crop circles.

    • 10 Mind Blowing Sex Facts: Part 2

      shows

      10 Mind Blowing Sex Facts: Part 2

      From gay dolphins to orgasm machines, there’s a lot about sex you don’t know. Arm yourself with 10 mind-blowing sex facts to awe your friends and lovers. Here are 6-10.

    • Are world governments preparing us for disclosure?

      shows

      Are world governments preparing us for disclosure?

      Conspiracy theories about hidden knowledge of extraterrestrials have been around for decades, but one of these theories has an interesting twist: What if the world's governments are using pop culture to prepare humanity for the arrival of aliens?

    • How Does Sleepwalking Work?

      shows

      How Does Sleepwalking Work?

      Have you ever walked in your sleep? Somnambulism isn't as rare as you might think. Join Cristen as she explores the facts and fiction about sleepwalking, from its many possible causes to whether you can safely wake up a somnambulist mid-stroll.

    • Smart Clothing: Charge Electronics with Your Shirt

      shows

      Smart Clothing: Charge Electronics with Your Shirt

      In the future, your smart clothes will clean themselves, keep you from getting sick, and even charge your cell phone!

    • George Ferris and the Ferris Wheel

      shows

      George Ferris and the Ferris Wheel

      When Chicago began planning for the World's Columbian Exhibition of 1893, the city's planners asked George Ferris to build something "original, daring, and unique." Tune in to learn more about his invention.

    • The Invention of Liquid Paper

      shows

      The Invention of Liquid Paper

      Dallas secretary Bette Nesmith Graham hated typos, because erasing an error left smears and smudges. Luckily, she decided to tackle the problem with paint rather than erasers. Learn about her Stuff of Genius in this episode.

    • Herstory: The Swimsuit Inventor

      shows

      Herstory: The Swimsuit Inventor

      Meet Annette Kellerman, the inventor of the women's one-piece swimsuit who was thrown in jail for wearing it on a Boston beach.

    • There's An App For That: Cockroach Mind Control

      shows

      There's An App For That: Cockroach Mind Control

      Christian talks to Greg Gage from Backyard Brains about the future of neuroscience and an invention that can remotely control a live cockroach with a smartphone.

    • Was there a race of giants?

      shows

      Was there a race of giants?

      Cultures across the planet have legends describing giant, human-like creatures. Usually, these stories are dismissed as folklore -- yet some people believe a race of giants did exist at some point in Earth's past. Tune in and learn more.

    • Why do we eat meat?

      shows

      Why do we eat meat?

      Why does Daym Drops react so passionately to a bacon cheese burger? Let's explore out emotional response to meat.

    • Autonomous Cars

      shows

      Autonomous Cars

      Road rage and traffic jams could become a thing of the past when autonomous cars take the wheel. Welcome to the future of driving.

    • Placebo Surgeries

      shows

      Placebo Surgeries

      Placebo surgeries might sound like the exclusive domain of quack doctors and scam artists, but as Josh tells Chuck, they're actually a real thing in mainstream medicine (and highly controversial at that).

    • For Your Eyes Only: The Privacy Visor

      shows

      For Your Eyes Only: The Privacy Visor

      A Tokyo-based team has invented a pair of glasses that disrupts digital cameras and prevents facial recognition. Want to hide your identity and personal information? We'll tell you how in today's episode.

    • Don't Be Dumb: Meat is Muscle

      shows

      Don't Be Dumb: Meat is Muscle

      Have you ever bitten into a whole turkey carcass and realized that some of the meat in your mouth was light and some was dark and did you wonder what the heck was the difference even though one tastes way juicier than the other?

    • What is SETI?

      shows

      What is SETI?

      Could we really discover intelligent life out there in the inky black of space? How? Listen in to learn more about SETI.

    • Stuff to Blow Your Kid's Mind: Rainbows

      shows

      Stuff to Blow Your Kid's Mind: Rainbows

      Rainbows can be achingly beautiful, but what makes that unique mix of colors spread across the sky? In this episode, Robert and Julie explain -- and demonstrate -- the science behind moisture, light and rainbows.

    • Why Babies Cry

      shows

      Why Babies Cry

      Babies cry because they're distressed, but scientists still aren't sure what types of negative emotions they experience and whether their angry facial expressions match their emotional state.

    • The Deep Web: A New Silk Road

      shows

      The Deep Web: A New Silk Road

      With growing furor over government surveillance, increasingly more Internet users are taking steps to preserve anonymity online and, to some casual surfers, the wild west days of the net are over. Or are they? Tune in to learn more.

    • This Is Your Brain on Upworthy

      shows

      This Is Your Brain on Upworthy

      How the most viral site on the Web leverages the science of curiosity for clicks.

    • George de Mestral and Velcro

      shows

      George de Mestral and Velcro

      When George de Mestral and his dog set out on a leisurely mountain stroll, they returned covered in burrs. Learn how an afternoon walk inspired the creation of Velcro in this video podcast from HowStuffWorks.com.

    • The Mummy: Desiccation and Resurrection

      shows

      The Mummy: Desiccation and Resurrection

      Just as withered mummies return to life and strangle the living, so too do various natural-world organisms bounce back from their desiccated state.  Join Dr. Anton Jessup for another hefty dose of Monster Science.

    • How to Pursue a Friend Crush

      shows

      How to Pursue a Friend Crush

      Cristen lets you in on the secret of how to turn a "friend crush" into a BFF.

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Fire Away! 'Star Wars' Missile Defense Quiz
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Stuff ... Illustrated

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Did you know: Morocco was the first country to recognize the United States as a sovereign nation in 1777. Another random fact

“Success is the ability to go from one failure to another with no loss of enthusiasm.” Who said it?

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Would you rather deal with spiders or mosquitos?

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