When it comes to longevity, quality of life matters a lot more than quantity, says Ruslan Medzhitov, PhD, professor of immunobiology at Yale University School of Medicine. It should not just be about adding years to life, but about adding life to years, agrees Petr Sramek, CEO of the Healthy Longevity Clinic and managing partner at LongevityTech. fund. Time moves slower. My mindset was just to...