Vitamins E and C <span>may slow the loss of cognitive function associated with Alzheimer's disease. There is a meta-analysis supporting that notion. Probably these vitamin gives protective effect because of their antioxidant property. Besides that, beta-carotene able to </span>slow the progression as well
Systematics is the study of the units of biodiversity. Systematics differs from ecology in that the latter is concerned with the interactions of individuals (and therefore species) in a particular time.