The app for independent voices
iPad reading before bed (vs printed books) caused:
1) 55% melatonin suppression
2) 1.5-hour circadian delay
3) 10 minutes longer to fall asleep
4) Less REM sleep
5) Groggier next morning
Mar 10
at
11:24 PM
iPad reading before bed (vs printed books) caused:
1) 55% melatonin suppression
2) 1.5-hour circadian delay
3) 10 minutes longer to fall asleep
4) Less REM sleep
5) Groggier next morning