This is gold
A giant in the field of sexual health!
Dr. Mulhall gets deep as usual!
Adrenalin.....anti-erection chemical!
@Nelson Vergel
00:33:51 Erectile Dysfunction
*PDE5 inhibitors - POTENT ENDOTHELIAL PROTECTIONS
* the penis is a BIG ENDOTHELIAL ORGAN
* ENDOTHELIN is the MASTER...