It’s one of the markers that your brain uses to control its circadian rhythms. During half of your 24 hour cycle its fine. Our devices push that balance too far though, contributing to stress and insomnia by disrupting that regulatory mechanism.
Wouldn’t be too different from living in the artic circle during the summertime, except without blackout shades and we’re doing it to ourselves with tvs, computers and mobile devices.
RIP everyone who doesn’t live exactly on the ecliptic.
The amount of time which the sun shines has very little to do with half of 24 hours most of the year where I live.