analysis to know your blood levels would prove useful ... Strength Muscles, however, still has other effects on sexual functions. Indeed, the level has a significant impact on the production of nitric oxide. Nitric oxide plays an essential and predominant part in the vascularization of the arteries and vessels, and in particular in the vasculature of the penis. can also lead to erectile dysfunction if the body's level is too low, which may result in erections that lack rigidity and make the sexual act impossible, or even a .