You won’t see it, or feel it, but when a muscle contracts, its blood vessels dilate, and there is a puff of gas called nitric oxide. The nitric oxide settles on the smooth muscles, which helps them to relax. This allows blood to flow through them much more easily. You won’t feel the puff, but you will feel the effects of the nitric oxide. Each time you feel that expanding feeling in a muscle, it means the nitric oxide has been released and has done its job; increased blood flow to your muscles. You’re wondering “why do people take a nitric oxide supplement if it’s produced naturally in our bodies?” This is simple; more nitric oxide means more blood flow to the muscles. It helps keep your muscles feeling pumped up, and that can greatly increase muscle energy during a workout. Over time, muscle mass is greatly improved, because you have gotten the most out of each workout.
