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 difficulty in having erections purely and simply . But the lack of can also have an opposite effect: the hardening of the arteries, including penis. And I assure you that, joking aside, you do not want that to .