It unquestionably enhances performance and is a drug of choice for many athletes .
It helps promote strength and muscle mass without some of the more unwanted side - effects such as increased body hair or the psychoactive drawbacks that cause mood swings and aggressive behavior .
It unquestionably enhances performance and is a drug of choice for many athletes because it helps promote strength and muscle mass without some of the more unwanted side - effects such as increased body hair or the psychoactive drawbacks that cause mood swings and aggressive behavior .