Staying up late is the general condition occurs in most of the current lot. Those who do not stay up late to bed before 11pm, no matter what they are getting enough sleep 7-8 hours each day. Always stay up late action is influenced by two factors: objective and subjective. The objective factors as excessive workload, overtime, the influence of those around them, changing environment. Besides, the subjective factor is the habit of staying up late, skills, poor time management.
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