if on a school night you go to bed at 10 and wake up at 7 and the next day not being a school day going to bed at 3 in the morning at waking up at 1 in the afternoon, it will throw your whole day off and make you more tired than if you have a regular schedule.
also exercising early in the morning before you start your day energizes your body!
i hope i helped. if you have any questions just message me!
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