Newsweek quoted Valter Longo on whether other former presidents will live as long as Jimmy Carter, who died at age 100, 43 years following the end of his presidency. “[The effect of] modern medicine will have only a limited effect and will be the same for all of them. The big difference will be the lifestyle choices they made in the past decades and the ones they will make in the future which could account for 15 to 20 years of biological age difference,” Longo said. “Also the heritability of making it to 100 is fairly high and the group is very small, so genetics and luck will also play big roles. Clinton for example made major improvements in lifestyle starting decades ago which have had and will have a major role in his chances to make it to 100. Those who stick to hamburgers and fries will need lots of luck and longevity genes to make it there.”