One fact about teenagers is that their circadian rhythms are shifted compared to adults and younger kids: their bodies will fight to fall asleep later and wake

One fact about teenagers is that their circadian rhythms are shifted compared to adults and younger kids: their bodies will fight to fall asleep later and wake up later. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820578/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820578/