The Body

Saying “Coffee makes me sleepy” might earn you a few puzzled looks, but there’s a science behind the phenomenon.

Next time your nose gets stuffy, make sure you know how to blow it correctly.

You're probably blowing your nose too hard. Here's the right way to clear your sinuses, according to experts.

Paul Robinson, Wikimedia Commons // CC BY-SA

It's so quiet at Orfield Laboratories in Minneapolis, Minnesota, that you can hear your lungs, stomach, and heart working.

Seeing your breath isn't a cold weather phenomenon. It can also be visible when it's as warm as 60°F outside!

It may have done its most important work when it was attached to your umbilical cord, but it’s not completely useless.

You may know an ice cream headache by one of its other names: brain freeze, a cold-stimulus headache, or sphenopalatine ganglioneuralgia ("nerve pain of the sphenopalatine ganglion"). But no matter what you call it, it hurts like hell.

The ancient Greeks and Romans gorged themselves while lying down, but medical professionals say eating (and digesting) in a reclined position isn't such a good idea.

All of your blood vessels laid end to end would circle the Earth 4 times. Read on for more amazing tidbits about the human body.

We only think about our intestines when we have intestinal pain, or when something else goes wrong. But scientists are finding intriguing links between your gut, brain, and other systems.

Your kidneys filter almost 50 gallons of blood a day to keep your whole body healthy. Read on for more facts about this crucial organ—including what causes kidney stones.

Saliva is more important than you think: You need spit to taste, chew, swallow, and digest everything you eat. Your spit even fights tooth decay and cavities.