Why is my 12 year old sleeping so much?

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Tags

1. #childhood
2. #earlier
3. #later
4. #affects
5. #start
6. #which
7. #their
8. #means
9. #during
10. #rhythm
11. #adults
12. #teenagers
13. #hours
14. #circadian
15. #secrete
16. #night
17. #melatonin
18. #because
19. #sleep
20. #still