The human body is naturally endowed with astonishing powers of renewal, self-repair, and regeneration. In other words, it doesn't have to wear out. In fact, your chronological age doesn't mean a thingwhat really matters is the biology of aging. The secret lies in "tricking" your body into adopting the metabolism of a twenty-year-old. In THE METABOLIC PLAN: Stay Younger Longer (Ballantine Books Hardcover; 2003; $25.95), renowned biochemist Stephen Cherniske, M.S. reveals the medical breakthroughs that can help to slow the aging process, increase stamina, enhance memory, and combat heart diseasestarting today. Cherniske's metabolic model of aging identifies two general forces at work in the human body: anabolic metabolism (rebuild, repair and restore) and catabolic activity (breakdown and degeneration). An increase in your anabolic metabolism can profoundly alter your energy level, your body's ability to fight disease, and even the intensity of your sexual desire and fulfillment. Critical anabolic factors include: DHEA, which contributes to more than 150 different metabolic functions; 7-Keto: when combined with DHEA, safely regains anabolic metabolism hGH, or Human Growth Hormone: bio-energetic nutrients to boost energy throughout the body and the brain; Catabolic factors to reduce are: oxidation, which produces cell death and tissue damage, gylcation or browning, declining liver function, stress.