Unformatted text preview: 3. What are common physiological effects of caffeine consumption? Caffeinc can cause your heart to beat faster and work harder, it can quicken your breath but if you drink to much, it can make your hands shake and could give you a headache or stomachache. 4. Where in the body does caffeine act? Caffeine is a stimulant in the central nervous system, the cardiac muscle and the respiratory system. It also acts as a diuretic, so it affects the bladder muscles. 5. Propose reasons why Alex and Jenna feel the need to consume caffeine while Sally does not. Why does Jenna feel that she needs more caffeine than Alex? Caffeine is mildly addicting, but when used excessively, one could feel a psychological need for caffeine. They must be experiencing withdrawal symptoms such as stomachaches, headaches and irritability....
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- Spring '08