Your testosterone levels go up when you use Score Male Enhancement: The main male hormone that controls a man's libido, sex drive, digestion, and many other body functions is testosterone. Bad news for men: as they get older, their production of testosterone levels drops, in particular after age 40. A lack of testosterone has been linked to a lack of libido, nervousness, obesity, and many other health problems. Low amounts of T have also been linked to not doing well in the bedroom.