Phosphatidyl Choline, a primary component of lecithin is converted in the brain into the neurotransmitter acetylcholine. Researchers have found acetylcholine to be the primary carrier of memory. Acetylcholine is generally found to be deficient in people with age-related memory impairment. Memory is stored in neurons in the brain, and a deficiency of acetylcholine can result in ineffective transport of memory across neurons, potentially resulting in a fragmentation of memory. Phosphatidylcholine may also be of benefit to persons who desire the effect of potential memory enhancement. Phosphatidyl Choline is derived from soy.*