Read the following article and answer the question.

Rev up Your Metabolism The fastest and most efficient way to weight loss , burn fat faster , and develop lifelong health and fitness is to add lean muscle to your body through resistance training - period . You want life changing results in the quickest possible time ? Get stronger and build some muscle . When you add lean muscle to your body you ll be literally turning your body into a fat burning machine !

What may be a fact about this situation ?
They are trying to recruit people to their weight loss program .