E. They 're antioxidants , which prevent cell damage and are believed by some to slow down diseases of aging . A new study found ginkgo biloba may not help prevent dementia , Alzheimer 's . People can take steps to keep their memory sharp . Score: 6
A new study found ginkgo biloba may not help prevent dementia , Alzheimer 's . People can take steps to keep their memory sharp . Score: 6