Melatonin (the "sleep hormone") production is/was linked to time through red light. If you're staring at a screen, you need* to use a blue color filter or supplement melatonin, same with going to sleep during the day.
* not really, most of the time the body can somehow manage, but if you're looking for quality sleep, or you have issues that you'd like to solve, you should look into it
* not really, most of the time the body can somehow manage, but if you're looking for quality sleep, or you have issues that you'd like to solve, you should look into it