“The human body is an extremely clever machine. It knows how to breathe all by itself. It knows how to make a baby. It knows how to grow. It knows how to digest food. It knows how to eliminate waste. It knows how to circulate blood, oxygen and nutrients. It knows how to heal a wound, and it knows how to fight disease. Enzymes like telomerase and resveratrol, although not a “fountain of youth,” offer tantalizing clues as to how we might someday soon unravel the aging process.”