> Whatever time is chosen is a moving target since kids would go to sleep later if school started later. That is obviously not true because then no school-star

> Whatever time is chosen is a moving target since kids would go to sleep later if school started later. That is obviously not true because then no school-starting analysis or experiment would show anything but a zero correlation or effect. > The real fix is to get kids to sleep earlier. 'The real fix to poverty is to get people to spend less and make more.' > artificial light lets them stay up very late without them feeling sleepy. The problem existed long before smartphones were a thing, and the effect of artificial light can only be so great. And again, if this were true, no study would ever show any benefits (or age-related differences, for that matter, between teens and adults).