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References Exercise Test

In his research, Dr Kelley concludes that restricted sleep in college students was associated with impaired immune response, anxiety, and depression.^[1]

^ Kelley, Paul; Lockley, Steven W.; Foster, Russell G.; Kelley, Jonathan (2015-04-03). "Synchronizing education to adolescent biology: 'let teens sleep, start school later'". Learning, Media and Technology. 40 (2): 210–226. doi:10.1080/17439884.2014.942666. ISSN 1743-9884.

[1] Kelley, Paul; Lockley, Steven W.; Foster, Russell G.; Kelley, Jonathan (2015-04-03). "Synchronizing education to adolescent biology: 'let teens sleep, start school later'". Learning, Media and Technology. 40 (2): 210–226. doi:10.1080/17439884.2014.942666. ISSN 1743-9884.

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