Lifespan: why we age--and why we don't have to

Introduction: A grandmother's prayer

What we know (the past). Viva Primordium ; The demented pianist ; The blind epidemic

What we're learning (the present). Longevity now ; A better pill to swallow ; Big steps ahead ; The age of innovation

Where we're going (the future). The shape of things to come ; A path forward

Conclusion.