Something as simple as heat or massage can strong-hand cramps into submission. Once the agony is over, it’s important to mount an anti-cramp campaign. Your body is probably yearning for potassium, magnesium, and calcium – the trio of minerals that helps regulate activity in your nerves and muscles. (You have potassium aplenty if you eat fruits and veggies, but you may be potassium poor if you’re on a high-protein diet.) You’ll also need to drink plenty of water and stretch your limits regularly.