If you haven’t hit your twenties yet then you probably can’t imagine losing your interest in sex. I feel you, Holmes. At 26, I have a healthy appetite now (partially because I consciously work on elevating my T) but it’s nowhere near where it was when I was 17. I imagine that things will only get worse by the time I’m 35 which is why it’s important to learn what gets your motor firing now.
Testosterone levels generally peak during adolescence and early adulthood. As you get older, your testosterone level gradually declines — typically about 1 percent a year after age 30 or 40. It is important to determine in older men if a low testosterone level is simply due to the decline of normal aging or if it is due to a disease (hypogonadism).