Mark Hyman and I are five minutes into our chat when he picks up the phone from a fellow doctor. “Hi Eva,” he says, scurrying ...

Dr. Mark Hyman doesn't act his age — the 63-year old longevity expert said his "biological age" (based on markers of cellular health) is 43, thanks to years of honing his personal routine.

Kennedy Jr., could help address what he calls “the greatest epidemic of chronic disease in the history of humanity.” Dr. Mark Hyman, co-founder and chief medical officer of Function Health, said ...