Aerobic exercise, including running, is really the least efficient exercise. The time invested is completely out of proportion to the effect received. First of all, aerobic exercise at the same time, the effect may not be as good as anaerobic exercise or other exercise. In terms of calories consumed, if you run for an hour, you may consume about 300 calories, but similarly, if you do boxing, you may consume about 500 calories, so obviously aerobic running is not cost-effective.

Secondly, if you just do aerobic exercise and want it to lose weight, the early effect may be obvious. But the effect will get worse and worse in the future. Because you will lose muscle during aerobic process, the decrease of muscle mass will directly lead to the decrease of your basal metabolism, thus further reducing the calories you consume every day.

And long-term aerobic, the body is easy to adapt, maybe you used to run for an hour, and now you need to run for an hour and a half to get the previous effect, which further reduces the efficiency, so try different exercises.