Ginko biloba has been studied for decades as a super herb for the brain and memory. As a blood vessel dilator, it works directly for the circulatory system to increase blood flow and oxygen to the brain. It has been shown to guard against oxidation and prevent damage to nerve cells. It has also been shown to help strokes, heart disease and other conditions related to the brain and circulation. It has been prescribed for many decades for Alzheimer’s syndrome and dementia, improving cerebral blood flow, memory and mental capacities in patients with those conditions.