Global experts warn that excessive screen time increases the risk of obesity, low physical fitness, anxiety and depression.
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Articles sur Lack of sleep
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You might be trying to catch up on sleep. Sleep scientists say some children need only nine hours of sleep at night, while others need as much as 11 hours. It depends on the person.
Teenagers aren't just lazy. Their sleep hormones aren't calibrated to let them get up and go until later in the morning – which has academic and health consequences when school starts too early.
Sleep deprivation in teenagers as a result of early morning school starts has been a topic of much debate. There's more to this issue than just laziness.
Les contributeurs les plus fréquents
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Senior Research Fellow in Organizational Leadership, Policy and Development, University of Minnesota
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Associate Professor and Head of Paediatric Sleep Research, CQUniversity Australia
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Professor of Physical Development, University of Wollongong
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Senior Researcher, University of the Witwatersrand
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Professor of Physical Activity and Public Health Science, University of Strathclyde
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Professor of Pediatrics in the Faculty of Medicine, University of Ottawa
