"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." [table-of-contents] stripped When you’re feeling stressed out, you may not feel great in your body. Turns ...

Add Yahoo as a preferred source to see more of our stories on Google. It’s not amore hitting your eye. The beauty buffs of TikTok have a new common enemy in cortisol. A condition dubbed “moon face” ...

"Cortisol face" is a trending topic on TikTok — but what is cortisol, exactly? And can it really impact your face shape? Cortisol is a hormone that mainly helps regulate your body's response to stress ...

Researchers in Germany have discovered that having lower cortisol levels in the morning—and higher cortisol levels in the evening—is linked to frailty in older individuals. Cortisol levels are ...

Photo-Illustration by Chloe Dowling for TIME (Source Images: Robert Brook—Science Photo Library, Getty Images, Elena Fontana—Getty Images, nito100/Getty Images) Contributor Do you feel overwhelmed by ...