Vasodilation

By dilating blood vessels, nitric oxide governs delivery of oxygen and nutrients to organs, tissues, and cells. Vasodilation from nitric oxide exposure improved sexual performance in men by increasing blood flow. Nitric oxide is framed as a coordination signal for perfusion and oxygen delivery rather than merely a bodybuilding pump compound. Caffeine and nitric oxide are presented as different vasoactive mechanisms that can both affect performance. Vasodilation opens blood vessels and allows blood to flow more freely through the circulatory system. Nitric oxide relaxes blood vessels to regulate blood flow. The relationship between blood vessel diameter, heart function, and blood pressure is integrated and must be understood together.