yo man, just like u i have also heard a lot of nitric oxide, i read ur article but i wanna know more about how i can use the No2 as a medicine for the heart. u see i know this person who has some of his arteries clogged up with cholesterol and he is very likely to get a heart attack soon. his doctor recommended him to take constant walks to get rid of that cholesterol in his arteries, but when he takes walks he experiences pain in his chest most likely because of his clogged arteries, so i was wondering could he use the No2 so that his clogged arteries expand allowing him to take walks more comfortably and maybe in time get rid of that cholesterol screwing him up in the 1st place? (he is 74 btw)