按照计划时间睡觉，将确保你能得到充足睡眠后去上早课，保持清醒。
Following the planned time will ensure you have enough sleep to get to those early classes and stay wide awake.
一项最新研究报告称，早睡不仅是得到充足睡眠的关键，而且有助于改善青少年的情绪。
Going to bed early is key to getting enough sleep and helping adolescents feel on top of the world, a new study reported.
一项Chicago大学的研究发现，当你没有得到充足睡眠时，“睡眠债”会改变你的内分泌系统功能。
A study conducted at the University of Chicago found that when we don't get enough sleep, "sleep debt" changes the way our endocrine system functions.
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