Ginkgo is a large tree with fan-shaped leaves. It is native to China, Japan, and Korea, but is also now grown in Europe and the United States. The ginkgo tree is thought to be one of the oldest living trees, dating back to more than 200 million years.Ginkgo biloba is an herb used to treat altitude sickness (prevention), cerebral vascular insufficiency, cognitive disorders, dementia, dizziness/vertigo, intermittent claudication, macular degeneration/glaucoma, memory loss, premenstrual syndrome, SSRI-induced sexual dysfunction, and as a vasodilator.Ginkgo leaf is often taken by mouth for memory and thought problems, anxiety, vision problems, and many other conditions, but there is no good scientific evidence to support most of these uses.The list of other uses of ginkgo is very long. This may be because this herb has been around for so long. Ginkgo biloba is one of the longest living tree species in the world. Ginkgo trees can live as long as a thousand years. Using ginkgo for asthma and bronchitis was described in 2600 BCE.In manufacturing, ginkgo leaf extract is used in cosmetics. In foods, roasted ginkgo seed, which has the pulp removed, is an edible delicacy in Japan and China.