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.

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Holding hands can help regulate responses to stress, increasing trust and emotional well-being.

By Shelley Danzy

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.

By Alia Hoyt

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

By Robert Lamb

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Does it just taste bad or are there other reasons?

By John Perritano

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.

By Alia Hoyt

A study asked participants to determine where a number of body parts such as the spleen, liver and thyroid were located in the human body. The only part everyone got correctly was the brain. Think you can do better? Take this quiz and find out!

By Alia Hoyt

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

By Jesslyn Shields

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.

By Alia Hoyt

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

By Jesslyn Shields

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

By Patrick J. Kiger

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

By Alia Hoyt

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

By Melanie Radzicki McManus

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

By Alia Hoyt

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?

By Samantha Sestanovich

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

By Alia Hoyt

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.

By Kate Kershner

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

By Kate Kershner

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

By Laurie L. Dove

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

By Laurie L. Dove

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?

By Kate Kershner

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

By Karen Kirkpatrick

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.

By Kate Kershner