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Your search for "why" returned 10,395 results
Do all creatures sleep?
animals.howstuffworks.com/animal-facts/all-creatures-sleep.htm
Are you wondering do all creatures sleep? Check out this article and learn if all creatures sleep and other information on the sleep cycle.
Attack of the Phantom Clone Sith Menace: The 'Star Wars' Prequels Quiz
play.howstuffworks.com/quiz/star-wars-prequels-quiz
The "Star Wars" prequels gave us a look at an earlier generation of heroes and villains, all in the midst of an epic political drama and a sweeping romance for the ages. Take this quiz to see how much you know about the "Star Wars" prequels.
What's the deal with crocodile tears?
animals.howstuffworks.com/reptiles/crocodile-tears.htm
Do crocodiles really have crocodile tears? Learn about crocodile tears and the history of the phrase.
How does the brain transform reality into dreams?
health.howstuffworks.com/mental-health/sleep/dreams/reality-dreams.htm
The brain can turn reality into dreams, especially when under stress. Learn about how the brain turns reality into dreams at Discovery Health.
The Ultimate Hiking Quiz
play.howstuffworks.com/quiz/hiking-quiz
It's well known that walking is a great form of exercise, but the same route can become more than a little boring, not to mention pounding a tread mill for 30 minutes a day. Rather than a boring walk, why not take a refreshing hike? The crisp, clean air and beautiful vistas make hiking a lot more than just a walk. Take our quiz to learn more about hiking and its health benefits.
Cholesterol Tests
health.howstuffworks.com/medicine/tests-treatment/cholesterol-tests.htm
A cholesterol test is the first step in getting your blood-cholesterol level under control. Find out what happens in this simple blood test.
Can You Sneeze With Your Eyes Open?
science.howstuffworks.com/science-vs-myth/everyday-myths/sneeze-with-eyes-open.htm
When you're a kid, this frightening rumor burns through the playground like wildfire. After all, what could be worse than your own eyes exploding out of your head? But does it have any truth to it?
Did a time traveler attend the premiere of Charlie Chaplin's 'The Circus'?
entertainment.howstuffworks.com/did-time-traveler-attend-premiere-charlie-chaplins-circus.htm
Do we finally have proof of time travel? Learn all about the 'time traveler' at Charlie Chaplin's movie premiere at HowStuffWorks.
Is humid air heavier than dry air?
science.howstuffworks.com/nature/climate-weather/atmospheric/is-humid-air-heavier-than-dry-air.htm
If humid air is just air plus water, then it has to be heavier than dry air, right? Sure, if it was only a matter of simple addition, but molecular physics is a lot like a bouncer at a club: Nothing gets in unless something else goes out.
Can pressing your upper lip stifle a sneeze?
health.howstuffworks.com/human-body/systems/nose-throat/can-pressing-upper-lip-stifle-sneeze.htm
The urge to sneeze can come upon you at the worst times. Find out if pressing your upper lip can stifle a sneeze at HowStuffWorks.