Cordyceps
Cordyceps (Cordyceps sinensis) is also called the "caterpillar fungus." In the wild it grows on and acquires nutrients from several species of caterpillars. In China, it is referred to as "winter worm, summer grass." This fungus is found at high altitude in the mountains of China, Nepal, and Tibet.
Cordyceps is one of the most treasured and safest medicinal mushrooms. Research has proven that it is beneficial to the lungs, heart, kidneys, liver and immune system. Cordyceps is a powerful tonic and can help restore normal function of the body, stimulate immune response, increase energy, vitality, and longevity. Recent research has shown that cordyceps can improve sport performance and muscle-building capability. In tradisional Chinese medicine, Cordyceps has been used to help regulate blood pressure, strengthen cardiovascular system, and improving sexual energy and desire. Clinical tests performed at Hunan Medical University have shown that cordyceps is effective in relaxing the smooth muscles tissue of the penis, increasing blood flow, resulting in harder erections.