Professor Rose Anne Kenny has thirty-five years of experience at the forefront of aging medicine. In Age Proof, she draws on her own pioneering research and the latest evidence to demystify why we age and shows us that 80% of our aging biology is within our control: we can not only live longer lives but become happier and healthier deep into our later years. Effortlessly distilling scientific theory into practical advice that we can apply to our everyday lives, Professor Kenny examines the impact that food, genetics, friendships, purpose, sex, exercise, and laughter have on how our cells age. This illuminating book will show you the steps you can take to stay younger for longer—and will prove that you really are just as young as you feel.