Thank you for a most interesting topic. Eye opening.

Does Blue Light from Screens Really Ruin Sleep?
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Robert Roy Britt
Freda Savahl
·Follow
Dec 25, 2020
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Thank you for a most interesting topic. Eye opening.
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Written by Freda Savahl3K Followers
·2.9K Following
Retired Nurse Practitioner WHC /Contract Provider Deployment Military Services. US Citizen. Immigrant from South Africa 1978.
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