How Much Exercise Does a Body Need?

Researchers keep moving the goal posts on exercise. For a while, the trend was to show benefits of minimal exercise, perhaps as an olive branch to people too busy for a full workout. Lately, the trend is essentially to say effort matters; more exercise means better health. So which is right? Both are. But one overrides standard health guidelines. Health institutions say people need about 150 minutes of moderate or 75 minutes of intense aerobic exercise each week. Moderate exercise might b