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CAFFEINE EFFECTS ON SLEEP

CAFFEINE EFFECTS ON SLEEP. BY ANDREW MCGRATH & ANDREA DELLA LIBERA. WHAT IS CAFFEINE?. It is a bitter, white crystalline xanthine alkaloid and a stimulant drug that can be found in seeds leaves or fruit of certain plants (coffee, tea, cocoa) or can be handmade. CAFFEINE AND THE BRAIN.

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CAFFEINE EFFECTS ON SLEEP

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  1. CAFFEINE EFFECTS ON SLEEP BY ANDREW MCGRATH & ANDREA DELLA LIBERA

  2. WHAT IS CAFFEINE? It is a bitter, white crystalline xanthine alkaloid and a stimulant drug that can be found in seeds leaves or fruit of certain plants (coffee, tea, cocoa) or can be handmade.

  3. CAFFEINE AND THE BRAIN Everybody knows that caffeine has various effects on the brain: it`s a stimulant, that increases intellectual abilities, but it can also influence people`s mood and affect the ability of sleeping, causing insomnia.

  4. BUT… Many experiments have shown how caffeine affects the brain but in real life it seems to be false, cause some people can quietly drink coffee or energy drinks without problems, even before sleeping.

  5. EXPERIMENT The purpose is to examine the effects of caffeine, to verify if it really affects the ability of sleeping. • Null Hypothesis: Caffeine doesn’t change people’s ability of sleeping • Alternative hypothesis: Caffeine acts as a stimulant and causes insomnia: people can hardly all asleep

  6. METHOD

  7. First we give a survey to 20-30 volunteers on their sleeping habits that they undergo every night. • After this we will pick 10 volunteers (5 male and 5 female) to be tested for two nights. • On the first night we will register their heart rate before they have consumed any caffeine.

  8. After their heart rate has been measured the volunteer will then sleep as they would normally. • The second night the volunteers will drink a high caffeinated drink and have heart rate measured. • After this they will again go to sleep like they would normally. • After waking up the volunteer will be given another survey about the previous night of sleep.

  9. REFERENCES • aracan, I., J. I. Thornby, M. Anch, L. R. Williams, G. H. Booth, and P. J. Salis. "Europe PubMed Central." N.p., n.d. Web. 21 Aug. 2013. • Ethanol and caffeine effects on daytime sleepiness/alertness.Lumley, Mark A.; Roehrs, Timothy; Asker, Deanna; Zorick, Frank; et alSleep: Journal of Sleep Research & Sleep Medicine • Lodato, Francesca, Martina Barchitta, Joana Arauio, Henrique Barros, Carla Lopes, and AntonellaAgodi. "Caffeine Intake Reduces Sleep Duration in Adolescents." N.p., n.d. Web. • "Sleep Advice: Better Sleep Tips." SLEEP RESEARCH PROJECT - Sleep Advice: Better Sleep Tips. N.p., n.d. Web. 21 Aug. 2013.

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