Dehydration can be deadly; the amount of water you need to stay healthy depends on a variety of factors.
The scientists found that drinking when thirsty activates the orbitofrontal cortex—an area of the brain linked to emotional decision making.
Chow down salty chips or pretzels, and soon you'll be guzzling your favorite drink. But snacking on sugary foods makes you thirsty, too.
Why does eating salty popcorn or baked ham make you thirsty, sometimes a few hours after you've eaten it?
Everyone knows salt makes you thirsty. However, did you know snacking on sugary foods makes you thirsty, too? Learn more on this Moment of Science.