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Does Your Body Really Replace Itself Every Seven Years?
science.howstuffworks.com/life/cellular-microscopic/does-body-really-replace-seven-years.htm
Your body replaces billions (with a b!) of cells every day. In about 100 days, 30 trillion be replaced, but does that mean you're a new person, too?
Can Animals Get Sunburned?
animals.howstuffworks.com/animal-facts/can-animals-get-sunburned.htm
Can the UV light emitted by the sun hurt a non-human animal's skin too? Learn whether animals get sunburned in this HowStuffWorks article.
Test Your Mental Mettle With These Ridiculous Riddles
play.howstuffworks.com/quiz/test-your-mental-mettle-with-these-ridiculous-riddles
Riddles certainly aren't new. In fact, ancient Sumerians were writing them over 4000 years ago! Let's see how well you do with our collection of brain-teasers!
12 Deadly Diseases Cured in the 20th Century
health.howstuffworks.com/diseases-conditions/rare/12-deadly-diseases-cured-in-the-20th-century.htm
Diseases like polio and smallpox took countless lives before a cure was found. Read our list of 12 diseases that were cured in the 20th century.
On Dreams and Dreaming
health.howstuffworks.com/mental-health/sleep/journal/on-dreams-and-dreaming.htm
Dream researcher Patricia Garfield talks about dreams and dreaming.
Can We Guess Your Favorite Dog Breed?
play.howstuffworks.com/quiz/can-we-guess-your-favorite-dog-breed
Choosing a very favorite dog breed is as hard as picking one song to accompany you on a deserted island! However, we think that we'll be able to figure out which pup you love the most after you answer our questions!
5 Ancient Egyptian Cosmetics
health.howstuffworks.com/skin-care/beauty/skin-and-makeup/5-ancient-egyptian-cosmetics.htm
Ancient Egyptian cosmetics had some of the same ingredients we use today. Take a look at five ancient Egyptian cosmetics to see what they used.
Spray Tanning Basics
health.howstuffworks.com/skin-care/beauty/sun-care/spray-tanning.htm
Spray tanning can be a healthier option for deepening your skin color. See how spray tanning works and learn if spray tanning is safe.
How Men and Women Use Body Language to Flirt
health.howstuffworks.com/relationships/dating/flirt-body-language.htm
The body language of flirting is highly involved. Visit Discovery Health to learn all about the body language of flirting.
How the Best Public Transportation Benefits Cities and Residents
auto.howstuffworks.com/tech-transport/public-transportation-benefits.htm
A 2019 study evaluated public transportation in 100 U.S. cities, ranking them best to worst. HowStuffWorks explores the results and how we can benefit.