what does brain shrinking mean
Know the causes. Brain atrophy is shrinking of the brain caused by the loss of its cells, called neurons. Two types of brain atrophy can occur; generalized and focal. Generalized atrophy refers to neuron loss throughout the entire brain, and focal atrophy refers to neuron loss in a specific brain region.rain atrophy is shrinking of the brain caused by the loss of its cells, called neurons.