AdvertisementRFK Jr. says Americans were healthier when his uncle was president. Is he right?Play05:17Download AudioUpdated June 09, 2025Selena Simmons-DuffinfacebookEmailPresident John F. Kennedy on August 4, 1961 on his way to a weekend on Cape Cod. As president, Kennedy valued exercise, physical fitness and vaccines.This article was originally published on June 08, 2025.