The same brain hormone affects feelings and behaviors in both chimps and humans, causing humans and chimps to share a variety of traits.
ATTENTION Night Owls! Losing sleep takes a serious toll on your health and safety.
Scientists have begun studying quail eggs to understand if nature or nurture changes the newly born chicks.
Did you know that people with red hair need more anesthesia during surgery than other people? Find out why on this Moment of Science.
Find out why melatonin is called "the hormone of darkness."
Have you ever been in love? Then you might be a little crazy according to scientists.
Because pregnancy increases the amount of blood flowing through the body, including to the skin, many pregnant women do get a rosy glow, but that's not all.
This might be why so many people gain the weight back after dieting. With higher levels of ghrelin in their blood, they wind up even hungrier than they were before, even when they stop dieting. Currently, drug companies are looking for safe ways to decrease the amount of gherlin in the blood.