Also known as memory treeuses poor memory cold hands and feetraynauds disease chilblains tinnitusdizziness impotencedescription this is probably one of the oldest medicinal herbs known to man its use can be traced to the oldest chinese materia medica dating back to around 3 000 bc traditional chinese medicine describes the ability of ginkgo leaves to benefit the brain today numerous clinical trials have shown ginkgos ability to improve brain function and therefore quality of lifehow it work