>Broadly speaking I've noticed a correlation between late screen time and bad sleep (or rather falling asleep). Your observation could be due to the placebo ef

>Broadly speaking I've noticed a correlation between late screen time and bad sleep (or rather falling asleep). Your observation could be due to the placebo effect. That's why a study is warranted. A yellow post-it could have similar effects if everybody constantly said that having a post-it on the display frame prevents circadian rhythm disruption.