Introduction: destiny of the species, welcome to the lucky years -- The century of biology: the cure is already inside you -- This isn't science fiction: the power of technology to extend your life -- The future you: how small data in the context of big data will save you -- The dawn of precision medicine: how to manage its power and perils -- Take the two-week challenge: how to measure and interpret your own data -- The danger of misinformation: how to know whom and what to trust -- A body in motion tends to stay lucky: the one supplement you're not getting enough of -- Wonder drugs that work: sleep, sex, touching, and tools to tame inflammation -- The butterfly effect: get ready to flap your wings.