Voice of America | Report Links Diet and Exercise to Alzheimer's Voice of America While scientists still aren't absolutely certain what causes Alzheimer's and dementia, "plaques and tangles" are at least a key indicator and maybe a part of the cause. According to the Alzheimer's Association, "plaque" is an abnormal protein that ... Healthy lifestyle reduces build-up of sticky brain plaques which lead to Alzheimer's, scientists show Diet, exercise reduce proteins linked to Alzheimer's disease, study says Diet, Exercise Could Stop Alzheimer's From Forming |