Scientist · Communicator · Advocate for healthy aging

Public health gave us longer lives. Now we have to make those years healthy.

I’m a Harvard scientist who studies how and why we age, and I spend much of my time explaining it: to the public, to journalists, to policy makers and to the organizations building the future of longevity.

Professor of Molecular Metabolism, Harvard T.H. Chan School of Public Health Director, Harvard Chan Healthy Aging Initiative

William Mair

The ZIP code you are born into shapes how fast your body ages.

Healthy aging has to reach every community. That makes it a public-health emergency, not a luxury problem.