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98% of People Can't Ace This Human Biology Quiz. Can You?
play.howstuffworks.com/quiz/98-people-cant-ace-this-human-biology-quiz-can-you
Did you know that your brain is more active in the evening and at night, while you're sleeping, than during the daytime? It's true -- that's when it does it most work. Let's see how much you know about basic human biology, and debunk some myths about all the things going on inside you without your knowledge right now.
How Nerves Work
health.howstuffworks.com/human-body/systems/nervous-system/nerve.htm
Nerves are what sense the world around you and pass that information along to your brain. Learn about nerves and see how the nervous system works.
How Stuntmen Work
entertainment.howstuffworks.com/stuntmen.htm
Stuntmen take very dangerous risks in order to give movies an added sense of realism. Learn about stuntmen and find out how stuntmen train for their stunts.
Why Didn't Evolution Give Us the Ability to Smell Fresh Water?
science.howstuffworks.com/life/evolution/humans-smell-fresh-water-evolution.htm
You'd think being able to smell drinkable water would be an evolutionary advantage. But we can only smell things that suggest potable water. Why is that?
What Kind of Number Am I?
play.howstuffworks.com/quiz/what-kind-of-number-am-i-1
Everything in the universe comes down to numbers. There's a baffling mathematical symmetry to everything no matter how disorganized and chaotic it is. Numbers lie at the center of everything! But what numbers? Take the quiz and see what ones you know!
What are endorphins?
science.howstuffworks.com/life/inside-the-mind/emotions/endorphins.htm
What are endorphins? Learn about endorphins and happiness and HowStuffWorks.
Is the brain hardwired for religion?
science.howstuffworks.com/life/inside-the-mind/human-brain/brain-religion.htm
Is the brain hardwired for religion? Proponents of neurotheology think it may be. Learn how science is figuring out if the brain is hardwired for religion.
How Pain Works
science.howstuffworks.com/life/inside-the-mind/human-brain/pain.htm
Pain is the most common reason people seek medical attention. But what actually is pain? How do you sense it? Learn how pain and pain perception work.
Narwhal Echolocation Abilities Exceed Those of Any Other Animal, Study Finds
animals.howstuffworks.com/mammals/narwhal-echolocation-abilities.htm
What are the echolocation abilities of a narwhal? Learn more about a new study on narwhal echolocation in this HowStuffWorks Now article.
'Aleppo Moments': What Causes Our Brains to Freeze Under Pressure?
It happens to politicians, beauty queens and regular folks. Brain farts, that is. But, why?