31.   Still, Sahelian, who takes creatine himself, says it can be beneficial in building muscle mass and making workouts more effective.

32.   Stretching exercises will help increase your flexibility, and weight training will build muscle and contribute to overall conditioning.

33.   Studies show seniors can build muscle mass into their ninth and tenth decades.

34.   Testosterone, which helps build muscle mass and allows an athlete to train harder and longer, can also be produced artificially.

35.   The drug complaint involves the fact that McGwire and other players take a legal, over-the-counter nutritional supplement that they believe helps build muscle mass.

36.   The idea is to build muscle and boost metabolism, thus burning more fat, Austin says.

37.   The over-the-counter drug raises levels of the male hormone testosterone, which builds lean muscle mass and promotes recovery after injury.

38.   The product promised to help her burn fat and build muscle, and it was readily available over the counter at health-food stores.

39.   The testosterone-producing pill is called androstenedione and is intended to raise levels of the male hormone, which builds lean muscle mass and promotes recovery from injury.

40.   To build muscle, these athletes needed three times the protein of mildly active sorts, and nearly twice the protein required by meat-eating Olympians.