Brain atrophy is a progressive loss of brain tissue, and a new study conducted by the National Institute of Aging has concluded that lack of sleep or excessive fatigue may lead to less cognitive activity. Without proper rest, the brains of older adults experience more atrophy. Some of the areas affected are more “susceptible to aging and Alzheimer’s disease.” These results may help identify who is more at risk so they are able to take more preventative measures to slow the progression of the degeneration.   click for more