Human Body

The human body is an amazing structure made up of many fascinating parts and systems. Learn about the human body and how its systems work together.

Topics to Explore

Learn More / Page 2

What Happens If You Don’t Poop for 47 Days?

What would happen if you didn't (or couldn't) move your bowels for several weeks? Let's just say you'd be in a crappy situation.

Concentration Makes the Face Grow Cooler

Thermal imaging shows that as a person engages in intense mental tasks, their face, and in particular the area around the nose, becomes cooler.

Pooping: Not All Animals Are Created Equal

The human system for excretion is actually pretty great, especially when you start looking at what other animals have.

Many Animals Eat Grass So Why Don't Humans?

Does it just taste bad or are there other reasons?

'Man Flu' Could Be a Real Thing

Although women often think men exaggerate their symptoms when they have a cold or flu, a Canadian scientist has found that men are more susceptible to respiratory complications than women.

Why Do We Do a Little Dance When We Have to Pee?

When we've really got to urinate, kids and adults alike do the pee-pee dance. What are the theories behind the fidgeting?

Surprise, Your Pinky Toe Does Serve a Purpose

No. 5 may seem like it's just hanging out there, but if you've ever injured it, you may have discovered how important it is for walking.

Sugars in Human Breast Milk Act as Antibacterial Agents

New research finds that nontoxic, antibacterial sugars found in human breast milk might be key to the next generation of antimicrobial drugs.

Scientists Discover Something Mind-blowing About How Usain Bolt Runs

The Jamaican sprinter has a uniquely uneven gait. Is he the fastest man alive because of, or despite, this asymmetry?

Do You Turn the Door Key and Have to Pee? It May Be All in Your Brain

If you find yourself running to the bathroom the minute you get home, experts posit this is a case of mind over bladder.

How Glasses Correct Colorblindness

Colorblindness affects around 300 million people worldwide. What is it and how can glasses help?

A Human's Sense of Smell Is Actually as Good as a Dog's

Although we've often been told that dogs have a superior sense of smell to people, a new report says there's little difference.

Why Chugging a Gallon of Milk Is Nearly Impossible

Plenty of theories exist for why drinking an entire gallon of milk in one sitting is a challenge often undertaken, infrequently accomplished. Who's right?

Your Appendix Actually Has a Valuable Function

This organ is finally getting some street cred after centuries of being largely underestimated.

The Human Body Has Just Upped Its Official Organ Count

Guess who's the new kid on the block?

What's Happening When People Suddenly Gain Superstrength?

When a teen lifts a burning car off the ground, it seems like a superhuman feat. But there's some simple — and amazing — science behind it.

Kidney Stone Rx: Hop on a Thrill Ride

Roller coasters: They're super fun, and they could help you pass a kidney stone without medical intervention. Who knew?

Ridiculous History: Toxic German Sausages Are Responsible for Botox

From killer sausages to canceling crows' feet, botulinum toxin has come a long way. Botoxwurst, anyone?

If Sunlight Makes You Sneeze, You're Not Alone

Is this you? This is totally you. Why do some people burst into violent sneezing fits when they encounter bright sunlight? Check your genetics.

Children Can Regrow Their Fingertips. How Cool Is That?

Careful with that chopping knife! If you lose a fingertip, it's probably gone forever. With kids, however, that's not always the case. Why is that?

Could Your Smartphone Cause Temporary Blindness?

Maybe if you look at it with only one eye -- in the dark.

Why Do Opioids Cause Constipation?

Opioids can make your insides skid to a slow crawl. That's a problem when you consider nearly 250 million opioid prescriptions were written in 2013 by CDC estimates.

It's an Electrical Cheese Sandwich for Your Gut

You always wanted to eat electricity right? Now you can, and it might even provide a health benefit.


Recommended