Working out, like breakin up, can be hard to do. Both involve physical and mental strain, and sometimes sweat and tears (hopefully no blood, though). But unlike breaking up, working out makes you feel better, stronger, and more attractive. Exercising lightens your mood, sharpens your mind, and quickens your reflexes. Your digestion improves, your skin takes on a healthy glow, and that swimsuit ceases to be the enemy.