Episode 13

Blue Light and Sleep


May 20th, 2019

49 mins 34 secs

Season 1

Your Hosts

About this Episode

We examine a paper that finds sleep disruption from using tablet computers (as compared to reading a book in dim light). How much should we be worried about the effects of screens on a good night's sleep?

There's good reason to believe that blue light is the main culprit -- recently discovered receptors in the eye that respond to blue light directly connect to brain areas implicated in sleep regulation. We lay out the case....

"Evening use of light-emitting eReaders...."
"Melanopsin: photoreceptors, physiology and potential"

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