Wade and Tavris explain that each person’s body experiences ups and downs throughout the typical day. In fact, biological
rhythms, the fluctuations that occur in one’s biological system, dictate numerous factors within one’s body, including
hormones, urine output, blood pressure, and our reactions to stimuli. Most of the time, our biological rhythms are in sync
with the external environment, and they typically occur within a 24-hour cycle known as circadian rhythms.
In this assignment, you will keep an hourly record of your mental alertness level for a minimum of three days using the
following five-point scale:
2–somewhat drowsy or mentally lethargic
4–alert and efficient
5–extremely alert and efficient
At the end of your observation period, you should compose an essay that defines circadian rhythms and explains how one’s
biological clock works. Additionally, you should describe what happens when it does not work properly.
You must also address the following questions in your essay:
Did your level of alertness follow a certain pattern or circadian rhythm?
Did you reach a noticeable high and low point once every 24 hours, or did you have a shorter rhythm?
Did your level of alertness rise and fall numerous times throughout the day?
If you performed this activity on the weekend, were your cycles the same as during the week?
Finally, think about how this experiment affects your life and your perception. What other factors influence your perception?
To conclude your essay, you should discuss four psychological factors that could be used to explain how you perceived the
world around you.