This week, you may have seen the following headline in your feeds: “Not exercising enough is worse for you than smoking and diabetes, study suggests.” For 122,000 patients at the Cleveland Clinic, better fitness—as demonstrated by better performance on a treadmill test–strongly predicted longer lives. Because there have been some questions about possible health risks of extreme exercise, the press release and news coverage focused on the health benefits enjoyed by those with the highest levels of fitness: the elite performers. But the study also reinforces many previous studies that show that a little exercise and a little fitness is better than none at all. On average, the “below average” fitness people outlived the “low” fitness people.
