William David Brown, a sleep psychologist at the University of Texas Southwestern Medical School and author of Sleeping Your Way to the Top, says Americans are sacrificing more and more sleep every year. Fatigue is cumulative, he says, and missing the equivalent of one night's sleep is like having a blood alcohol concentration of about 0.1 above the legal limit to drive. He says lack of sleep affects brain function, memory, heart health and makes people prone to depression and diabetes. ...
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