The Man Who Lived Forever: a story of perfect health, long life and the fountain of youth

Scientists tell us that the human body is genetically coded for perfect health, youthfulness and immortality. In other words, since the body's 7 trillion cells renew themselves every seven years, there's actually no reason for us to age, get sick or even die. If that's true, then what are we doing wrong? Why are people getting sick younger and aging faster? How did we lose our connection to immortality? And how do we get it back? What if there were a way you could re-activate your body's do...