I appreciate the point being made---that we're too reductive in how we view a healthy human body---but calling Patrick Mahomes "one of the greatest athletes on planet earth" is laughable. He's more healthy than many adults, but he's no means an outlier amongst _athletes_. Compare that claim to this header [1] by Cristiano Ronaldo. He jumped 2.6 meters, at pace, perfectly timed, to score a goal, in his mid-30s.
And more generally, I would take almost no health advice from American footballers, many (most?) of whom will go into old age with ailments and injuries due how they treated their bodies.