Is it better to move more or move harder? Two new 2026 studies suggest that while movement volume matters, vigorous intensity acts as a unique shield against chronic disease.

"I would encourage patients with PAD to engage in high-intensity exercise and would tell them that even a relatively small [number] of minutes can be helpful." — Mary M. McDermott, MD,Northwestern ...

For middle-aged and older men, new data suggest that it’s how hard they exercise, not how much, that may be contributing to the paradoxical increase in coronary atherosclerosis seen in athletes.