Ginkgo - Ginkgo biloba Used for: enhanced mental function, attitude sickness, enhanced blood circulation, vertigo, tinnitus, leg cramping, and depression. This plant enhances mental abilities and increases concentration, aptitude, memory and alterness. It may be helpful in Alzheimer's disease by alleviating depression. It increases oxygen to the brain and regulates neurotransmitters and helps to make brain metabolism more efficient. Possible immune cell suppressant to benefit allergies and asthma.