Your body is pretty amazing. At any given point you have many biological processes going on -- circulatory, digestive, brain & central nervous systems and more. Learn about these body systems as well as the eye, ears, nose and throat.
Travelers commonly experience unusual bowel symptoms while traveling. Why is this, and what can we do about it?
The eye twitching that's driving you crazy — it's likely caused by nothing more than stress or fatigue. But you may need to see a doctor if you have other symptoms, too.
Listed as an organ donor on your driver's license? That designation does not include your brain.
Chemical flavorings interact with the solvents in vaping liquids, forming dangerous new compounds. And that's before they're even heated.
For over 40 years, scientists have been searching for the protein that allows us to hear. Its recent discovery might help people regain their hearing.
Contact lenses fragment into microplastics that slip through water filtering systems and ultimately end up in the oceans.
About 1 in 15 Americans over 40 smell odors that aren't there, according to a new study. And the reason why is still a mystery.
Sudden savant syndrome can make you a math whiz or musical prodigy instantaneously. But how?
It happens to almost everyone and there are lots of possible explanations.
Blue light-blocking glasses are super popular these days. But do they even work the way marketers promise?
What's behind the fact that you can drink three cups of coffee and still feel sleepy while your coworker feels jittery after one cup? Our bodies all process caffeine differently. Here's why.
James Harrison's blood contains a rare and powerful antibody that's saved millions of Australian babies. Now, at age 81, after donating 1,173 times, he's hoping someone else will pick up where he left off.
Music festivals are a blast, but research shows they can also be a bummer for your ears. One study even says that alcohol, coupled with loud music, can make the hearing loss worse.
Enter the Fartonomicon with the guys from Stuff to Blow Your Mind. You're guaranteed to have a gas.
You had LASIK surgery a few years ago, and your vision has started to blur again. Is this normal?
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?
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