The satisfying sensation of using Q-Tips has a scientific explanation.

THE BODY
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.
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.
Taking in oxygen to power your whole body is just one part of your lung function. Altogether, your lungs are a highly efficient machine—and they do a lot more than you might think.
Discover more about the origins of toenails—plus the real reasons why your toenails may be getting thicker and changing colors.
Body fat is not just something to get rid of. It plays important roles in the human body, from regulating metabolism to storing energy.
Worried about the health risks that come with shoveling show? Here's what you need to know, plus a few tips for how to do it safely.
Not only is the liver your largest internal organ; it is in charge of hundreds of bodily processes ranging from fighting infection to manufacturing proteins and hormones to helping your blood clot.
It’s less than an inch in diameter.