Ginkgo

Ginkgo is among the oldest living species on earth and has been used extensively as a medicinal agent worldwide for centuries. The chemical constituents that have helped ginkgo resist potentially damaging pests during the millennia most certainly contribute to its positive effects on health. It is the most frequently prescribed medicinal herb in Europe, with hundreds of studies reporting positive effects from taking ginkgo for both the prevention and treatment of various health complaints. The most dramatic benefits are reported in improving circulation in the elderly. This can lead to enhanced memory, delaying the onset of Alzheimer's disease, reducing senile dementia, tinnitus and vertigo. Ginkgo’s memory-enhancing effects are reported in younger populations as well. 

Most frequently reported uses include: Alzheimer's Disease, Cardiovascular Support (Angioplasty, Angina, Bypass), Cerebral Vascular Insufficiency, Cognitive Enhancement, Cyanosis, Dementia, Depression, improves microcirculation to the brain/heart/periphery, as a cardiovascular tonic, Memory Enhancement, Peripheral Vascular Disease, Raynaud's Disease, Tinnitus and Vertigo.

Other reported uses include: Allergies, Antioxidant, Arterial Or Venous Insufficiency (Intermittent Claudication), Asthma, Decreases Platelet Aggregation (Improves Blood Flow), Hypoxia, Impotence, Increases Cellular Oxygenation, Macular Degeneration, Radioprotective and Vascular Spasm (Raynaud's).

Precautions

General
Ginkgo is safe and side effects are extremely rare, but fresh seeds of the ginkgo tree should not be eaten because they may be toxic.

Health Conditions
Based on pharmacology, use with caution in individuals with bleeding disorders.

Side Effects
The most typical side effects are GI distress and headache. These are present in less than 0.5 percent of the people in studies.