Why Can't I Stay Up As Late As You Do?

Tell your kid Not only does your body need a break after running around all day, your brain needs one too. It's busy exercising as you think and discover new things. Since you're so active and learning so much more than adults each day, you need extra time to rest. You go to bed a little earlier so your body and mind can work even better in the morning.

What you should know Contrary to popular belief, our body and brain don't "grow" while we sleep. But scientists know that rest is essential to healthy mental development; when kids get less than ten hours a night, they're more irritable and don't learn as well, Dr. Sanghavi notes.

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