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Informative Speech

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Daniela P

on 3 April 2013

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Transcript of Informative Speech

ABOUT CAFFEINE What is caffeine? What is caffeine? Natural alkaloid

Bitter substance- chemical compound


Most widely used drug on the planet Sources and Consumption Sources of Caffeine coffee
OTC medicines How much is too much? Moderation is 2 to 4 cups a day

80% of the world consumes caffeine daily

74% of athletes consume caffeine before competing Effects and Health Concerns Effects Affects CNS-
Stimulates blood pressure, brain activity, heart rate, etc.

Positive and negative Excessive Consumption May lead to:




Sleep disorders

Increases urine production

Increases the possibility of becoming caffeine-dependent Positive Effects Positive Effects Energy boosts

Increased alertness

Improved reaction time

Gets rid of headaches Health Concerns “I believe humans get a lot done,
not become we’re smart,
but because we have thumbs so we can make coffee.”

-Flash Rosenberg Kuhn, 2008 So, is caffeine a drug? Caffeine is addictive

Psychoactive substance

Develop tolerance Neal, 2009 Mayo, 2011 Negative Effects irritability




sleep disorders Caffeine is a psychoactive drug that occurs naturally

Comes is various forms

Has positive and negative health effects Nehligh, 2002 Sources Rodrigues, I. (2005, December). Effects of caffeine, stress, family history . Retrieved from http://books.google.com/books?id=K2i6-4iuw5sC&printsec=frontcover&dq=effects of caffeine&hl=en&sa=X&ei=z9dUUdbNG4K49gSTyYHgDg&ved=0CC4Q6AEwAADalsky, C. (2001, April). effects of caffeine ingestion on metabolism and exercise performance. . Retrieved from http://europepmc.org/abstract/MED/723503/reload=2;jsessionid=WjHrUbDmLQFpisCXVl5t.2 Nehlig, A. (2002, August). Caffeine and the central nervous system: mechanisms of action, biochemical, metabolic and psychostimulant effects. Retrieved from http://www.sciencedirect.com/science/article/pii/016501739290012B Mayo, C. (2012). Nutrition and healthy eating- caffeine content for coffee, tea, soda and more. Mayo Foundation for Medical Education and Reearch. Retrieved from http://www.mayoclinic.com/health/caffeine/AN01211Neal, R. (2009, February). Caffeine nation. Retrieved from http://www.cbsnews.com/8301-3445_162-529388.html Rufus, A. (2010). The World’s Most Popular Drug. Psychology Today, Retrieved from http://www.psychologytoday.com/blog/stuck/201005/the-worlds-most-popular-drugKuhn, C. (2008). Buzzed: The straight facts about the most used and abused drugs from alcohol to ecstasy . W. W. Norton & Company. Retrieved from http://www.amazon.com/Buzzed-Straight-Abused-Alcohol-Ecstasy/dp/0393329852 Sources of Caffeine Negative Effects Caffeine actually improves cognitive task performance

Only short term

Once effect wears off, cognitive performance is reduced

Accelerated heart rate may lead to stroke- myth In conclusion...
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