Giant dinosaurs evolved several ways to cool their blood and avoid heatstroke.
Ultrasound turns on production of the hormone insulin in mice. Someday, it might help maintain healthy blood-sugar levels in people who were recently diagnosed with diabetes.
There are many types of mucus in the body. They might seem gross, but these gloppy goos are the first line of defense against infection.
The vagus nerve runs from the brain all through the body. It controls many basic functions, including how fast the heart beats.
Noroviruses make people vomit, but scientists didn’t actually know why. It now turns out that those viruses cause their misery by attacking special “tuft” cells in the gut.
A man ate one of the hottest peppers in the world. About a minute later, his head began pounding. See why they didn’t permanently disappear for days!
Some supplements claim they can help people with celiac disease, who cannot digest gluten. But do the pills work? One teen used science to find out.