This study aims to identify naturally occurring genetic variations between men which modify the impact of testosterone, the major male hormone, on men's health and medical care. This study will examine new factors which determine how much any particular man may gain benefit from testosterone exposure such as in muscle and bone development as well as suffer detrimental effects on cardiovascular and prostate diseases. This may clarify some new aspects of how men's health is determined as well as d ....This study aims to identify naturally occurring genetic variations between men which modify the impact of testosterone, the major male hormone, on men's health and medical care. This study will examine new factors which determine how much any particular man may gain benefit from testosterone exposure such as in muscle and bone development as well as suffer detrimental effects on cardiovascular and prostate diseases. This may clarify some new aspects of how men's health is determined as well as developing new, customized medical treatments for men.Read moreRead less