Specific purpose: To inform my audience about the effects and health issues of caffeine. Thesis: Caffeine can have many different effects on the body depending on the amount of consumption.
A. Attention Getter – How many of you here consider yourself caffeine addicts? How much soda do you drink a day? One bottle? Two cans? More? How about coffee? B. Thesis statement – Caffeine can have many different effects on the body depending on the amount of consumption. C. Sig. Of Topic -Connection – Caffeine is pervasive in our society these days and every few months we hear about how a study has shown that it is bad for us or good for us. What are we to believe? D. Preview – I will discuss the beneficial effects of caffeine, the negative effects and discuss what are considered safe levels of caffeine consumption.
Transition: Let’s 1st look at the negative effects of caffeine.
B. What are the negative effects?
1. The negative effects of caffeine are largely dependent on how much you consume. a. When consumed in small quantities, for example when you have one cup of coffee or one soda, caffeine can cause your heart rate to increase, you urinate more which can cause dehydration, and your digestive system produces more acid. b. In larger amounts, caffeine can cause you to have headaches, feel restless and nervous, be unable to sleep, and even, in very large quantities to have hallucinations. (Don't try that at home!) When larger amounts of caffeine (over 600 mg per day) are used over long periods of time you can develop sleep problems, get depressed and have problems with your digestive system.
Transition: Now that we know of the bad effects, let’s discuss the benefits.
A. Beneficial effects
1. Caffeine, which comes from the leaves, seeds and fruits of about 63 different plants, is well known as a stimulant. That's why people drink it, right? a. Caffeine does help you wake up and feel more alert...