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.
Hamstrings are a group of three muscles running down the back of the thigh, and they have a lot to do with your flexibility.
Diplomatic staffers in Havana, Cuba, recently began to suffer from a series of health problems. Were they sound-related?
Holding hands can help regulate responses to stress, increasing trust and emotional well-being.
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.
Thermal imaging shows that as a person engages in intense mental tasks, their face, and in particular the area around the nose, becomes cooler.
The human system for excretion is actually pretty great, especially when you start looking at what other animals have.
In case you needed one.
Does it just taste bad or are there other reasons?
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.
When we've really got to urinate, kids and adults alike do the pee-pee dance. What are the theories behind the fidgeting?
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.
New research finds that nontoxic, antibacterial sugars found in human breast milk might be key to the next generation of antimicrobial drugs.
The Jamaican sprinter has a uniquely uneven gait. Is he the fastest man alive because of, or despite, this asymmetry?
If you find yourself running to the bathroom the minute you get home, experts posit this is a case of mind over bladder.
Colorblindness affects around 300 million people worldwide. What is it and how can glasses help?
Although we've often been told that dogs have a superior sense of smell to people, a new report says there's little difference.
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?
Yep. It's tricky like that.
This organ is finally getting some street cred after centuries of being largely underestimated.
Guess who's the new kid on the block?
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.
Roller coasters: They're super fun, and they could help you pass a kidney stone without medical intervention. Who knew?
From killer sausages to canceling crows' feet, botulinum toxin has come a long way. Botoxwurst, anyone?
Is this you? This is totally you. Why do some people burst into violent sneezing fits when they encounter bright sunlight? Check your genetics.
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?