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.
Black Hairy Tongue: It's Gross, but You'll Live
HowStuffWorks: Eyebrow trends over the last 100 years
Scientists Discover Protein That Could Help Restore Hearing
Please Stop Flushing Your Contacts!
You'll probably be OK if your tongue turns black and hairy, but you should definitely see a medical professional.
By Jesslyn Shields Sep 13, 2018
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.
By Jesslyn Shields Sep 4, 2018
Contact lenses fragment into microplastics that slip through water filtering systems and ultimately end up in the oceans.
By Stell Simonton Aug 23, 2018
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.
By Alia Hoyt Aug 22, 2018
Sudden savant syndrome can make you a math whiz or musical prodigy instantaneously. But how?
By Jesslyn Shields Aug 14, 2018
Eyebrow trends over the last 100 years
It happens to almost everyone and there are lots of possible explanations.
By Michelle Konstantinovsky Jul 3, 2018
Blue light-blocking glasses are super popular these days. But do they even work the way marketers promise?
By John Perritano Jun 18, 2018
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.
By Laurie L. Dove Jun 18, 2018
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.
By Christopher Hassiotis May 18, 2018
Whether you have an innie, an outie, or none at all (you'll have to read the article to find out how that's possible), we've got you covered.
By Dave Roos May 7, 2018
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.
By Dave Roos May 1, 2018
Enter the Fartonomicon with the guys from Stuff to Blow Your Mind. You're guaranteed to have a gas.
By Robert Lamb Apr 18, 2018
The discovery of a new interstitial "organ" may explain how cancers metastasize, how acupuncture works.
By Stell Simonton Apr 11, 2018
You had LASIK surgery a few years ago, and your vision has started to blur again. Is this normal?
By Nathan Chandler Apr 5, 2018
Hamstrings are a group of three muscles running down the back of the thigh, and they have a lot to do with your flexibility.
By Melanie Radzicki McManus Apr 4, 2018
Diplomatic staffers in Havana, Cuba, recently began to suffer from a series of health problems. Were they sound-related?
By Patrick J. Kiger Mar 15, 2018
Holding hands can help regulate responses to stress, increasing trust and emotional well-being.
By Shelley Danzy Mar 14, 2018
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 Mar 12, 2018
Thermal imaging shows that as a person engages in intense mental tasks, their face, and in particular the area around the nose, becomes cooler.
By Amanda Onion Mar 7, 2018
The human system for excretion is actually pretty great, especially when you start looking at what other animals have.
By Robert Lamb Feb 12, 2018
In case you needed one.
By Robert Lamb Jan 16, 2018
Does it just taste bad or are there other reasons?
By John Perritano Jan 3, 2018
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 Dec 12, 2017
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 Nov 16, 2017
Does Caffeine Increase — or Decrease — Appetite?
The Milk and Mucus Myth, Busted
Time-restricted Eaters Lose Weight Even Without Changing Diet