Pronunciation ChallengeWhy Babies Can't Drink Water

Hyponatremia is common in marathon runners who drink too much too fast during a race without also providing enough sodium to balance out their blood.

And if you keep drinking, that excess water will eventually reach the cells in your brain.

By this point, you have a dangerous case of water intoxication, which affects roughly 200,000 Americans each year.

It occurs when your brain cells swell, which builds up pressure inside your skull that can lead to seizures, brain damage, and, in severe cases, death.

But don't worry, dying from water intoxication is extremely hard for a fully-grown human.

And if you keep drinking, that excess water will eventually reach the cells in your brain.

And if you keep drinking, that excess water will eventually reach the cells in your brain.