Prevent low blood sugar as it stresses you out. Eat regular and small healthy meals and keep fruit and veggies handy. Herbal teas will also soothe your frazzled nerves.

We need at least 90 mg of vitamin C per day and the best way to get this is by eating at least five servings of fresh fruit and vegetables every day. So hit the oranges and guavas!

Don’t have soft drinks or energy drinks while you're exercising. Stay properly hydrated by drinking enough water during your workout (just don't overdo things, as drinking too much water can also be dangerous).