Testing your body fat composition is an essential step in understanding your true physical health. Knowing how much muscle, water, and body fat you possess provides the opportunity to actively work towards a desired body composition. Having greater muscle mass gives you a more youthful, slender appearance, rather than a bulky one. Increasing your resting metabolic rate (RMR) allows you to burn more caloeries and maintain your weight more effciently. Furthermore, feeling stronger by having more muscle is essential to aging well, and slowing the effects of the aging process.