Even dim candlelight before bed is bright enough to disrupt sleep

Our body clocks vary markedly in their response to light before bedtime, with some likely to have their slumber disturbed even by very dim illumination

Source:
https://www.newscientist.com/article/2204572-even-dim-candlelight-before-bed-is-bright-enough-to-disrupt-sleep/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home