Arginine = Better Sex
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L-arginine has been shown to increase the ability to obtain erections and maintain stamina in men. It has also been reported to increase libido, as well as the intensity of sexual sensations in both men and women.
Just as Viagra helps boost nitiric oxide, arginine also boosts nitric oxide. Men obtain erections easier because it facilitates blood flow to the erectile tissue of the penis.
Size Matters and science backs it up...
The latest information relating to arginine is that the nitric oxide it produces tells your muscles to add extra contractile units (called sarcomeres) to the ends of their fibers in response to stretching, causing the muscles to grow bigger through growing longer. In support of this theory is a study published in both the Journal of Physiology and the American Journal of Physiology, which found that holding the muscle of an adult animal in a stretched position causes both sarcomere addition and NO release. Additional support comes from UCLA researchers Timothy Koh, Ph.D., and Jim Tidball, Ph.D., who worked with rats whose leg muscles had atrophied due to immobilization in casts. After the casts were removed, one week of arginine supplementation led to faster relengthening of muscle than one week of control treatment.
As for arginine’s other stimulating effects, dozens of studies reviewed in The Journal of Urology confirm that arginine allows more blood to enter the penis, most likely by relaxing smooth muscles within the organ that would otherwise constrain blood flow. This results in a firmer and longer-lasting erection. The process is similar to that of Viagra, so if you’re shy about asking your doctor for that famous former heart drug, arginine could be a face-saving (and far less costly) solution.