Viagra was first developed for the treatment of a rare heart disorder. However, during the initial research studies it became obvious that the medication could increase blood flow and potentiate an erection.
More studies revealed that Viagra acted on an enzyme in the smooth muscle that relaxed the blood vessels. This permitted more flood to flow to the penis and hence resulted in a prolonged erection. Viagra was then shown to increase blood flow to the lungs by relaxing the blood vessels. This finding has proven to be great benefit to individuals who have reduced oxygen to the lungs and are always gasping for breath. Now, an off label use of Viagra is among bodybuilders.
The exact number of athletes and bodybuilders who use Viagra is not known but the numbers are significant. While some bodybuilders use Viagra to enhance their sex life, others use it to increase endurance and build up muscle. Research has shown that athletes who use Viagra do develop a low blood pressure and tend to perform well with aerobic exercises.
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