Sorry about the delayed response. Just got back from vacation in Mexico. Nitric Oxide is a miraculous little molecule that we all make. It keeps the blood vessels clean by purging plaque and keeping the vessels soft, pliable and elastic. That also maintains cleanliness. Simply put, it's all about circulation, which is important, whether we're talking about E.D. , high BP or some other condition that would be hindered or aggravated by arterial plaque.
There's a terrific precursor that I can recommend that I use, myself. The guy who sells it is more negotiable offline. His name is Dan and his number is on the site. http://kardiosaver.myproargi9.net/