Tag: American Insomnia Study
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Nation & World
Wake-up call
Insomnia is costing the average U.S. worker 11.3 days, or $2,280, in lost productivity every year, according to a study led by Ronald Kessler of Harvard Medical School.
Insomnia is costing the average U.S. worker 11.3 days, or $2,280, in lost productivity every year, according to a study led by Ronald Kessler of Harvard Medical School.