This refers to the difference in the sleep patterns of people between weekends and weekdays. Social jet lag is seen by many as caused by the modern lifestyle which requires that people operate within a strict time schedule on weekdays unlike on weekends. On weekends, people are generally free to sleep longer and in sync with their body’s natural sleep cycle. This frequent change in sleep pattern is considered to be similar to the change in sleep pattern witnessed when people travel across time zones. Researchers believe that such a disrupted sleep pattern can have harmful effects on health.
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