Study: Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness

pnas.org/content/112/4/1232

A few highlights: 55% less melatonin produced, less REM sleep, and having a hard time getting started in the morning. Best of all? The effects on circadian clock caused a 90 minute delay in feeling ready for bed the next day.

I'm learning that a good nights sleep may be one of the most precious gifts we can give to ourselves, not just for cognitive health but overall health as well.

Link found in this informative article: Technology and Our Healthy Sleep: ehtrust.org/key-issues/cell... (under collapsible topic, "What does research on sleep, screens, and light show?")