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Marco Ball-Albarran




Discuss explanations for insomnia and/or narcolepsy. (8 marks + 16 marks)


Explanations of narcolepsy are in majority biological. Scientists have discovered that narcoleptics
often are lacking in hypocretin which is a chemical in the brain that control sleep and wakefulness. A
lack of this chemical may explain the…

Page 2

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Marco Ball-Albarran




inhibit sleep such as watching TV before going to bed or studying in the bedroom can restrict the
onset and disturb the quality of sleep. For example, watching TV activates the SCN in the pineal gland
because the light from the LCD screens act as exogenous zeitgebers which…

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