Informative Speech Outline

Johnna Casey

COMM 101 12:00

10/18/2017

Preliminary Outline

Specific Purpose: To inform my audience of the effects of caffeine on the human body.

Central Idea: After consuming caffeine, the central nervous system is stimulated, resulting in a wide array of both positive and negative effects on the human mind and body.

I. Introduction A. I would venture to say that most of us in this room like to start our day with a cup of coffee. It’s delicious, energizing, and relatively convenient with the campus Starbucks at our disposal. In our culture, this is nothing uncommon. The United States Food and Drug Administration reports that around 80 percent of adults in America consume some form of caffeine every day. For those that do, however, many fail to consider

Diuretics tend to have a dehydrating effect, as the body is losing fluid more rapidly.

IV. Blood pressure and adrenaline levels increase when caffeine reaches the bloodstream. A. This can have positive effects, such as enhanced athletic ability. B. After prolonged exposure to the bloodstream, caffeine can contribute to issues such as an irregular heartbeat and hypertension.

V. Long term consumption of caffeine can lead to undesirable impacts on the skeletal and muscular systems of the human body. A. After prolonged consumption, caffeine can inhibit the body’s ability to absorb and process calcium. When calcium isn’t processed effectively, the bone tissue produced by the human body is weak and porous. This is known as osteoporosis. B. Overconsumption of caffeine can affect the muscular system by causing discomfort such as muscle twitching and aching.

VI. Caffeine withdrawal symptoms are present in nearly all parts of the human body.

A. Some psychoactive effects of caffeine withdrawal include headaches, dizziness, forgetfulness, and insomnia.

B. Physical effects of withdrawal include muscle pain and decreased muscle stamina, and gastrointestinal complications such as heartburn and