Free weights and aerobic exercise are great, but to really prepare your body for the functional demands of everyday living, add functional training to your workout rotation. By working out with equipment that uses your own body weight as resistance, you'll forge your core into a strong unit for daily activities such as squatting, lifting, twisting, and tugging. With a stronger core, you'll be less likely to experience muscle strain or injury, and your energy and endurance will improve too. A personal trainer can get you started on a functional training routine that targets all of your physical fitness goals.