Summer heat can often drag you down, making hours of rehearsal in a sweaty studio seem even more daunting. Studies show that grabbing a mildly caffeinated beverage before exercising on a hot day can improve your performance. The caffeine in a small cup of coffee, tea, or cola can stimulate your muscles and offset heat-related fatigue. So when rushing to the studio, don’t pass up that coffee shop on the corner. Just make sure to stay hydrated with plenty of water as well.