9781422288047

In 2000, an Astros pitcher was hospitalized for dehydration after drinking several cans of Red Bull.

When you’re exercising, it’s especial- ly important to drink lots of water and stay hydrated ! Caffeine makes you pee more, and this can mean your cells have less of the water they need.

Caffeine can make your heartbeat irregular—and you need your heart at peak performance during exercise.

35