The extended release of cortisol, which is a common result of chronic or prolonged stress, can be detrimental to an individual's health. A primary harmful effect of sustained high levels of cortisol is the significant weakening of the body's immune system.

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Cortisol is a stress hormone. During the beginning of an exposure to a stressor, it provides the body with energy. However, long periods of exposure to stressors leads to sustained levels of cortisol, which in turn weakens the immune system.

Cortisol Hormone

When the body's stress response remains active for extended periods or frequently operates beyond normal limits, it can lead to cumulative damage. This concept of 'wear and tear' is analogous to how an air conditioner deteriorates from being run constantly at its highest setting.

Cumulative Wear and Tear from Chronic Stress

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Harmful Effects of Prolonged Cortisol Exposure

Research has frequently observed a correlation between individuals diagnosed with depression and the presence of high levels of the stress hormone cortisol in their bodies.

Correlation Between High Cortisol Levels and Depression

A classmate states, 'The stress hormone cortisol is entirely bad for you and only serves to weaken your body.' Which of the following statements best evaluates this claim?

A student is preparing for final exams. Initially, they feel a surge of energy and focus, allowing them to study for long hours. After two weeks of intense, non-stop studying and high pressure, they fall ill with a bad cold immediately after their last exam. Based on your understanding of the body's hormonal response to stress, explain the likely reason for both the initial energy boost and the subsequent illness.

Analyzing Physiological Stress Responses

Sustained high blood pressure, often resulting from significant and prolonged stress such as job strain, can inflict damage on the heart over time. This chronic strain can create conditions that lead to severe cardiovascular events like a heart attack or heart failure.

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