Learn the science behind the sensation of butterflies in the stomach and what it reveals about your body.

THE BODY
The surprising science that explains everything you need to know about food comas.
Breaking down a common belief and what you should know before trying it.
Our bodies’ connection to sound and movement is more significant than we realize.
There are a lot of myths and misunderstandings about menstruation. But it’s important to parse out what’s true and what’s a lie.
The satisfying sensation of using Q-Tips has a scientific explanation.
Body comp scales claim to measure how much fat and muscle you have, but they may not give an accurate picture of health. Here’s why.
If eating fresh fruit makes your mouth tingle, you might have this little-known (but very treatable) condition.
You can’t actually feel your blood pressure, but it’s one of the body’s most important indicators of cardiovascular health. Here’s the lowdown on how blood pressure works—and what it means for your overall wellness.
It sounds like a myth, but hot drinks really can make you cooler.
Once essential for early humans, wisdom teeth are now more of a nuisance than a necessity.
Why do farts always seem to smell worse in the shower? You can blame science (and how enclosed the space usually is in the first place) for this bizarre phenomenon.
Here's what’s happening in your body when you eat ice cream or drink a chilled beverage too fast.
The vagus nerve does it all—tells your lungs to breathe, controls your heart rate, and even forms the foundation for a whole new medical field.
Technically, your heart isn’t made of gold. And don't wear it in on your sleeve—you’ll make a mess. Here are 11 scientific facts about your ticker.
Like clockwork, flu viruses seem to strike more people in winter than in any other season—and there are several reasons for that.
George Washington died after his physician treated his sore throat with bloodletting, but don't let that stop you from learning more about the human circulatory system.
The male sexual organ is more complicated than it might seem.
Humans are now known to have between 20,000 and 25,000 genes, but researchers still have much to learn about these small segments of DNA.