Excessive PAF can hlp cause cardiovascular disease, brain damage, hearing disorders and other immune and inflammatory diseases. Ginkgo has been used to relieve tension and anxiety and improve mental alertness, elevate mood and restore energy. Ginkgo has two groups of active substances, flavonoids and terpene lactones, including ginkgolides A, B, and C, bilobalide, quercetin, and kaempferol. The ginkgolides have been shown to control allergic inflammation, anaphylactic shock and asthma. Ginkgo also acts as a powerful antioxidant and contributes to the oxidation of free radicals which are believed to contribute to premature aging and dementia.
Antioxidants also protect the eyes, cardiovascular system and central nervous system.
Ginkgo may also help control the transformation of cholesterol to plaque associated with the hardening of arteries, and can relax constricted blood vessels. The herb has been used in treatment of other circulation-related disorders such as diabetic peripheral vascular disease, Raynaud's syndrome, hemrrhoids and varicose veins. It can also aid in the treatment of insufficient circulation and complications from stroke and skull injuries. Ginkgo's beneficial effects on the circulatory system also can be of benefit in the treatment of eye and ear disorders. Studies have confirmed that ginkgo increases blood flow to the retina, and can slow retinal deterioration resulting in an increase of visual acuity.