What No One Tells You Happens to Your Body When You Drink 8 Glasses
"Drink 8 glasses of water a day" is one of those bits of wisdom that everyone knows but no one seems to know why eight is the magic number.
"Eight glasses a day" is like "finish your broccoli," advice we've heard from our parents since we were kids and still mostly ignore.
But there's good reason to listen up: 70-75% of an adult's body weight comes from water, according to the Institute of Medicine (IOM). So, it's pretty obvious how important water is to a healthy body.
But why 8 ounces 8 times a day? And what does…