Meta
Afolabi Sotunde / Reuters
Billionaires are backing top scientists racing to develop tech that could reverse aging. Cellular reprogramming promises to rejuvenate the body — but how does it work, and is it safe?
Chesnot/Getty Images
Chesnot/Getty Images
Carina Johansen/AFP/Getty Images
Summit Therapeutics
Stefanie Keenan/Getty Images
Noah Berger/Getty Images
Pavlo Gonchar/SOPA Images/LightRocket/Getty Images