In depth

Best Drink After a Workout: Water, Chocolate Milk or Electrolytes?

Water, chocolate milk or an electrolyte drink? The 3 things your body needs after exercise, backed by research.

How should a runner hydrate during a workout?

How much to drink during a run, at what pace, and why water alone isn't enough after 60 minutes.

How to prevent muscle cramps in sport (what science says)

Cramps don't just come from dehydration. Here's what science says, with a numbered electrolyte reference.