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Do you work the late shift or have an irregular work schedule? <br>SWSD is a sleep disorder that affects people who frequently rotate shifts or work at night. About 20 % of the US workforce is involved in some form of shift work.<br><br>So what are the symptoms of shift work sleep disorder (SWSD)? Find out how shift work sleep disorder may be impacting your health. http://sprayablesleep.com/signup
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