Alzheimer's disease and memory loss in America is hitting record numbers. Low magnesium status can accelerate brain cell aging and memory loss. Standard magnesium offers limited protection to brain cells. Magnesium-L-threonate is a new form of magnesium that dramatically boosts levels of magnesium in the brain. Boosting brain magnesium with magnesium-L-threonate enhances synaptic density and plasticity, the structural basis of learning and memory. In numerous experimental models, supplementation with magnesium-L-threonate has been shown to enhance memory and cognitive performance in multiple tests.