Architecture professor Mahomed Boubekri worked with Northwestern University to see what effect the lack of sunlight has at work. It found people lose 46 minutes of sleep if they work somewhere without windows.
They put activity watches on people working with windows and without. 25 people, of 49 studied, were losing sleep. They say workers without any sun are more restless when they sleep.
Boubekri says he found people spend 95% of their lives indoors and some people say it doesn't bother them, but they know it can be an issue. The study was done on workers in the Champaign area. After they logged their sleep patterns, the data was analyzed.
Professor Bourbekri says he plans to do another study focusing on how Vitamin D is good for your health.
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