Not lifting weights

Lifting weights has a distinct weight-loss benefit that sets it apart from other forms of exercise: Lifting weights helps you gain muscle and lose fat. Because muscle tissue is more metabolically active than fat tissue, when you gain muscle, your body will burn more calories at rest over time than it did before.

Resistance training can help you promote weight loss. Lifting weights has been shown in studies to be one of the most effective ways to grow muscle and increase metabolic rate. It also improves strength and physical function, and it may help in the reduction of belly fat. In fact, according to an analysis of 32 trials involving over 4,700 obese adults, the best fat-loss strategy appears to be a combination of aerobic exercise and weightlifting.