51.   He could swim and kick his legs and build his muscles.

52.   HGH, which helps build muscles, is produced naturally by the pituitary gland.

53.   Human growth hormone, which helps build muscles, is one of two drugs officials believe athletes use to cheat.

54.   Human growth hormone, which was designed to treat dwarfism, is used by some athletes to build muscle.

55.   It also aids the circulation of growth hormones, which can build muscle mass and increase endurance.

56.   It has become one of the biggest-selling dietary supplements, thanks to athletes who hope it will build muscles.

57.   Looking for a drug to build muscle mass and improve performance?

58.   One sample showed high levels of testosterone, a male hormone which acts as a steroid in building muscle mass.

59.   Rich enthusiasts hire full-time veterinarians, farm hands and trainers to exercise their birds and build their muscles.

60.   Some products containing GBL have been promoted with unsubstantiated claims to build muscles, enhance sex, reduce stress or induce sleep.