”individuals chronically performing high-intensity long-distance running appeared to lose the mortality benefit.10, 11 Indeed, an emerging body of scientific da

”individuals chronically performing high-intensity long-distance running appeared to lose the mortality benefit.10, 11 Indeed, an emerging body of scientific data suggests that chronic, excessive, high-intensity exercise may induce oxidative stress and myocardial fibrosis, accelerate atherosclerosis, increase vascular wall thickness, and increase cardiac chamber stiffness.” Yes. And there’s already a growing body of research showing this in those that regularly lift heavy (competitively or otherwise). TL;DR: Some stress is good. Extreme and repetitive stress is not.