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12 Facts About Belly Buttons
The ins and outs.
THE BODY
12 Facts About Kidney Stones
They’re more common than ever.
Here’s What Happens to Your Body During Anaphylaxis
This is the science of it, step by step.
12 Facts About the Gallbladder
It's that little organ you may have forgotten about.
6 Signs You're Getting Hangry
Check yourself before you wreck yourself.
11 Facts About the Appendix
It has a function after all.
What's Really Happening When We See 'Stars' After Rubbing Our Eyes?
Don't worry—it's perfectly normal.
Why Your Knuckles Make That Satisfying Cracking Sound, According to Science
One of life's most pressing questions, explained.
Scientists May Have Just Discovered a New Organ—And It Could Be the Biggest Yet
They call it the interstitium.
11 Amazing Facts About the Nipple
Sure, it's a titillating subject—but it's also a pretty versatile body part.
12 Fantastic Facts About the Immune System
Without our immune system, we wouldn't last very long: this complex network of organs and cells fights off pathogens and helps maintain our health.
Why Is Your First Instinct After Hurting Your Finger to Put It in Your Mouth?
This self-soothing behavior is actually a pretty effective technique for temporarily calming pain signals to the brain. Here's how it works.
10 Surprising Ways Senses Shape Perception
Things are not always as they seem.
6 Quick Facts About the Buttocks
5. Back pain may originate in your butt.
8 Little Known Facts About the Temple
It's the thinnest part of the skull … which is why Maori warriors crafted a special weapon to crush it.
This Soft Artificial Heart May One Day Shorten the Heart Transplant List
Its developers hope it sparks the next generation of total artificial hearts.