Which of the following is mentioned among the reasons for poorer sleep? 1. Consumption of drugs. 2. Work for telecom firms. 3. Lack of communication. 4. Work done at home.

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Which of the following is mentioned among the reasons for poorer sleep? 1.  Consumption of drugs. 2.  Work for telecom firms. 3.  Lack of communication. 4.  Work done at home.

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