How to brew tea: pour 1 teaspoon of tea into a container and pour boiling water (250 ml). Let it brew for 1-2 hours, strain and squeeze. Take 70 ml daily before meals. Ginkgo seems to improve blood circulation, which might help the brain, eyes, ears, and legs function better. It may act as an antioxidant to slow down Alzheimer disease and interfere with changes in the brain that might cause problems with thinking. Ginkgo seeds contain substances that might kill the bacteria and fungi that cause infections in the body. The seeds also contain a toxin that can cause serious side effects like seizures and loss of consciousness. Do not use the product in case of individual intolerance.