The Human Immunodeficiency Virus (HIV) is one of the worldâs most confusing and complex viruses. In this series, we will strip away the scientific jargon and provide a straightforward guide to HIV with the Elizabeth Glaser Pediatric AIDS Foundation (EGPAF)âs Director of Basic and Clinical Research Jeffrey Safrit.
In the body, L-citrulline is converted to the amino acid L-arginine, which goes on to make another important substance nitric oxide. And nitric oxide is the secret to hard, firm, healthy erections. Heres how it worksâ¦.
Physiologically, erection is triggered by the parasympathetic division of the autonomic nervous system (ANS), causing nitric oxide (a vasodilator) levels to rise in the trabecular arteries and smooth muscle of the penis.