Ginkgo Biloba is the oldest species of tree. It has light green, fan shaped leaves. The leaves and inner seed of the fruit of the Gingko Biloba tree have been reported to have medicinal qualities. The leaves of the Ginkgo tree contain chemicals that decrease the thickness of blood and increase the size of blood vessels. The resulting increased blood flow improves oxygen levels which may relieve conditions such as memory loss, intermittent claudication, macular degeneration, glaucoma, hearing problems, Raynaud’s phenomenon, and erectile dysfunction.