Dr. Peter Attia posits how cardiovascular exercise on an elite level is the single most important variable for longevity.
If this is true, where does it stand against the cortisol hypothesis often espoused on this forum? And where does it stand against Haidut's find that runners have severe kidney damage post-run?
What in Dr. Attia's metrics could potentially be askew so as to suggest the longevity affirmation?