As males, we are basically the sum total of the testosterone of ours level as it's our testosterone that defines us as the males we're. Testosterone defines the voice tone of ours, body hair, fertility, muscle mass, and excess fat level as well as our prowess and interest in activity that is sexual. But rushing off to source unlawful steroid injections will never make us more manly - in fact the opposite is likely to happen with the most common complication of artificial hormones is a shrinking of the testes.