Neurobiology researchers from Peking University and the Perelman School of Medicine at the University of Pennsylvania recently published a study on the negative effects of sleep deprivation. They subjected laboratory mice to short and long periods of sleeplessness and then looked at their locus coeruleus, the nerves that interact with cognitive function and control alertness in general. The research findings show that long-term loss of sleep can cause brain damage by diminishing brain cells by...