Q: Recently, the Internet is very hot maca, for the treatment of impotence is really very effective? Dr. Wang Bin of the Department of Male Medicine at Dongzhimen Hospital: Maca is a plant used for both medicine and food, and is native to Peru, South America, where the Incas use it as a tonic, calling it Peruvian ginseng. Maca contains high units of nutrients and has been successful in opening the door to international markets for its fast-improving properties. In 1999, American scientists discovered two new types of active ingredients in maca, macamides and macaenes, and determined that these two substances have a significant effect on balancing hormone secretion in the body, so maca is also known as the natural hormone engine. Maca is also known as a natural hormone engine. Foreign studies have also shown that maca extract does have the effect of improving erectile function, sperm quality and sexual performance. However, just as not all people are suitable for taking ginseng, not all people are suitable for taking maca and need to be treated differently when using it. At present, Maca is not used clinically in China, and there are few studies on Maca in China.