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Originally Posted by stevie667
Sorry, you seem to have fallen fowl of me not explaining stuff properly 
The NO2 will dilate your vessels to their maximum size and keep them that size for longer, where as your body may not do that naturally duiring a workout. It shouldn't push them further than they can normally expand, but nonetheless, its something that could be dangerous if you took too much. |
Might point precisely...you used the word naturally. If your body doesn't do that naturally and there isn't a medical reason to help it along, then the opposite term is un - natural.
A better way to open the pathways is to do low heart bpm cardio mixed in with some higher intervals which will help improve overall cardiovascular fitness - aka, opening those pathways. That's the natural way.