The digestive system is in charge of absorbing and transporting nutrients your body needs in order to thrive -- and it gets rid of all the waste the body doesn't need. Discover how saliva breaks down the food you eat and more.
How White Matter Helps the Brain's Gray Matter Function
Bruce Willis Has Aphasia. What Is It and What Causes It?
Can Our Bodies 'Learn' to Withstand Frigid Temperatures?
The True Story of the Blue People of Kentucky
What Is the Rarest Blood Type in the World?
What Does It Mean If Your Blood Oxygen Level Is Low?
Does Oxytocin Make Us Fall in Love?
5 Ways Homeostasis Keeps Your Body Humming Along
Is It Possible to Get Taller as an Adult?
Do You Have One of the 6 Rarest Eye Colors in the World?
Why Do Babies' Eyes Change Color?
There Are 6 Different Eye Shapes. Which One Is Yours?
'Man Flu' Could Be a Real Thing
Sugars in Human Breast Milk Act as Antibacterial Agents
Does mouthwash affect your immune system?
Kidney Stones Are Excruciating, But the Source of Pain Is Surprising
Why Do We Do a Little Dance When We Have to Pee?
Do You Turn the Door Key and Have to Pee? It May Be All in Your Brain
The Lymph System
What is lymph?
How One Key Protein May Help Tendons Enhance Athletic Performance
What Are Muscle 'Knots' and How Do You Get Rid of Them?
Children Can Regrow Their Fingertips. How Cool Is That?
What Happens When the Wind Is Knocked Out of You?
The Science Behind Why We All Have Snot
Why Breathing Through Your Nose Is Best
Saliva is not exactly the most appetizing of subjects, but it plays an important role in everything from how food tastes to how it is digested.
Maybe you've seen those fantastical stories saying the world's longest piece of poop is 26 feet? Is that even possible? Where does crap like this come from?
By Alia Hoyt
A new study found that giving your feet a boost in the bathroom lessened constipation (and straining) significantly.
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?
From killer sausages to canceling crows' feet, botulinum toxin has come a long way. Botoxwurst, anyone?
Smelling fecal matter is gross enough, so the possibility that tiny bits of poop are actually getting into your nose is outright disgusting. But should you be worried?
Burping can be gross, but imagine the chaos if all of that gas built up and your stomach exploded. Could it happen?