Chapter 26

Chapter 26: Stress and Associated Problems

1. Introduction to Stress Response

• Stress response is defined as a generalized or systemic response to changes in the internal or external environment.

• Homeostasis refers to the body’s ability to maintain stability and compensate for minor changes in needs or environment.

• A stressor is any factor that creates a significant change in body function.

2. Effects of Severe or Prolonged Stress

• Severe or prolonged stress may lead to dysfunction in various ways:

  • Increased wear and tear on tissues due to chronic engagement of stress responses.

  • Exhaustion of bodily resources, leading to decreased functionality.

  • Exacerbation of existing chronic conditions, worsening overall health outcomes.

3. General Adaptation Syndrome (GAS)

• The concept of General Adaptation Syndrome describes the body’s three-stage response to stress:

  3.1 Fight or Flight Stage

  • Initiated during the alarm stage, this involves the mobilization of defenses via:

  • The hypothalamus

  • Activation of the sympathetic nervous system

  • Release of hormones from adrenal glands:

    • Adrenal cortex (associated with long-term stress responses)

    • Adrenal medulla (associated with short-term acute responses)

  3.2 Resistance Stage

  • In this stage, the body experiences an elevation of hormone levels.

  • Body systems operate at peak performance levels to manage ongoing stressors.

  3.3 Final Stage

  • Can result in two outcomes:

  • Resolution, where normal function is restored.

  • Death, if stress is too prolonged or severe.

4. Significant Effects of the Stress Response

• Major physiological changes can occur in response to stress:

  • Elevated blood pressure and increased heart rate due to catecholamine release.

  • Bronchodilation and increased ventilation to enhance oxygen intake.

  • Increased blood glucose levels for immediate energy supply.

  • Arousal of the central nervous system heightens alertness and awareness.

  • Decreased inflammatory and immune responses, potentially increasing susceptibility to diseases.

5. Positive vs Negative Stress

• Stress can be categorized into:

  5.1 Positive Stress (Eustress)

  • Considered beneficial; it can inspire, encourage, and promote long-term health.

  • Associated with outcomes such as motivation, efficiency, creativity, attention, and focus.

  5.2 Negative Stress (Distress)

  • Causes adverse physiological responses.

  • Can lead to significant health issues if not managed properly.

6. Technostress (TS)

• Technostress refers to stress that results from the use of information and communication technologies (ICTs).

• It arises from societal and business expectations surrounding ICT use.

• Due to the increasing digitalization of business and society, TS remains a relevant and growing concern.

• It is prevalent across all age groups, with a noticeable increase in older individuals.

7. Stress and Disease: Specific Problems

• Stress can lead to several health issues:

  • Headaches may develop during or after a stress response.

  • Stomatitis, which includes mouth ulcers, and necrotizing periodontal disease may occur.

  • Prolonged vasoconstriction can impair organ functions or lead to necrosis in gastrointestinal tracts and kidneys.

  • Chronic infections and physical/emotional distress are potential precipitating factors of these conditions.

8. Potential Effects of Prolonged or Severe Stress

8.1 Physical Effects

• Prolonged severe vasoconstriction can lead to:

  • Renal failure due to ischemia and resultant cell damage.

  • Stress ulcers that arise from decreased mucosal regeneration and mucus production, influenced by vasoconstriction and glucocorticoids.

  • Infections due to the depression of inflammatory and immune responses.

8.2 Psychological Effects

• Slowed healing processes following trauma or surgery due to:

  • Increased glucocorticoid secretion, which reduces protein synthesis and tissue regeneration.

  • Elevated catecholamine levels that cause vasoconstriction, reducing nutrient and oxygen supply to tissues.

• Posttraumatic stress disorder (PTSD) can occur as a serious consequence of major disasters or personal threats:

  • Typically recognized within three months of the event, but symptoms may appear years later.

  • High risk of developing dependencies on drugs or alcohol in individuals experiencing PTSD.

9. Coping with Stress

• Strategies to cope with stress effectively include:

  • Ensuring adequate rest and maintaining a well-balanced, healthy diet.

  • Seeking creative solutions to minimize stressors and adapt quickly.

  • Engaging in regular moderate exercise to help manage stress responses.

  • Participating in distracting activities to reduce stress levels.

  • Utilizing counseling and support services for assistance.

  • Practicing relaxation techniques to enhance coping mechanisms.