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More smartphone use may lead to poor sleep: Study

Matthew Christensen from the University of California, San Francisco in the US and colleagues sought to test the hypothesis that increased screen-time may be associated with poor sleep by analysing data from 653 adult individuals across the US participating in the study.

Smart phones, Excess use of smartphones, disadvantages of smartphones, ill rfeect of smart phone, University of California, phones, less sleep, reason behind less sleep, health issues due to smartphone, indian express news Photo for representational purpose.

People who spend more time on their smartphones may have a poor sleep quality and less overall sleep, a new study has warned. Smartphones are increasingly becoming part of everyday life, but questions remain about the effects of frequent use on sleep. Poor sleep is associated with health conditions such as obesity, diabetes and depression, resaerchers said. Matthew Christensen from the University of California, San Francisco in the US and colleagues sought to test the hypothesis that increased screen-time may be associated with poor sleep by analysing data from 653 adult individuals across the US participating in the study. Participants installed a smartphone application which recorded their screen-time, defined as the number of minutes in each hour that the screen was turned on, over a 30-day period. They also recorded their sleeping hours and sleep quality.

The researchers found that each participant totaled an average of 38.4 hours over this period, with smartphones being activated on average for 3.7 minutes in each hour. Longer average screen-time was associated with poor sleep quality and less sleep overall, particularly when smartphones were used near participants’ bedtime. The researchers state that their study is the first to measure smartphone exposure prospectively, but caution that the study also had some important limitations, including the self-selection of study participants and self-reporting of data.

While the findings cannot show causation or exclude the “effect-cause” that poor sleep could lead to more screen time, the association they found could fit with the theory that bedtime smartphone use may negatively impact sleep. The study was published in the journal

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First published on: 10-11-2016 at 08:45:21 pm
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