How long does Dr. Peter Attia want to live? “I want to live to be old enough to have a meaningful relationship with as many of my grandkids as I can. That probably means making it into my 90s,” says Dr. Attia, a pioneer in longevity medicine. He reached that answer after mapping out his life by the decade using something he calls the “timeline exercise,” envisioning when his children might get married and have children. “I know that the difference between being 80 and 90 is huge, in terms of what I can have with those kids,” he adds. #longevity #grandkids #outlive #aging