Adults usually need seven to nine hours of sleep each night. 成年人通常每晚需要七到九小时睡眠。
A regular bedtime helps the body know when to rest. 固定的就寝时间能帮助身体知道何时休息。
Too much screen light at night can make it harder to fall asleep. 夜里屏幕光过多,会让人更难入睡。
读一读为什么良好睡眠能保持精力。
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Adults usually need seven to nine hours of sleep each night. 成年人通常每晚需要七到九小时睡眠。
A regular bedtime helps the body know when to rest. 固定的就寝时间能帮助身体知道何时休息。
Too much screen light at night can make it harder to fall asleep. 夜里屏幕光过多,会让人更难入睡。