Maybe this post from Patricia will appeal to you.
If you want to sleep better at night and do more physical activity, you need to expose yourself to sunshine the whole day. You will enjoy similar benefits even through the window.
“There is increasing evidence that exposure to light, during the day, particularly in the morning, is…
You can find the entire post at http://www.fabriasas.net/improve-sleep-fitness-letting-sun/
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