A recent study has linked chronic insomnia to broader mental health issues like depression and anxiety.
Each year, the medical and reduced productivity costs associated with insomnia among U.S. workers is estimated to be $92.5 to $107.5 billion, according to a survey conducted by the Washington-based National Sleep Foundation (NSF).
According to the Sleep Disorders Clinic at Samsung Medical Center, one in five adults suffers from sleep disorders.
Source: The Chosun Ilbo / Korea
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