A new contest pits competitors against each other in a race to biological youth

This week, I officially signed up for an unusual competition. One that rewards competitors for getting younger.I recently turned 40, and I don’t need reminding that both time and my chronological age only tick forward. But this game is focused on competitors’ biological ages—figures that are meant to provide a better way to measure the age-related health of our organs and bodies.Over a six-month period, around 500 of us will try to reverse our biological age as measured in a b