Memory is all about acetylcholine, and attention is all about dopamine.
Attention failure is a sign of Alzheimers disease and the collapse of memory.
Parkinson's disease is one of dopamine deficiency the brain wears out biochemically and electrically. Parkinsons is a neurological disorder it effects one million Americans.
Tryptophan may serve to inhibit tremors.
Eric Braverman, M.D.
