stress

Health Issue: Stress is not just unpleasant but detrimental to overall health, enabling infections and weakening immunity.
Observation: Commonly noted illnesses during exam times, especially winter finals, such as flu and strep.
Mechanism: Stress affects the immune system, making one more susceptible to pathogens (viruses, bacteria).

Emotional Health: Stress is linked to physical responses; increased heart rate during stress is a common phenomenon.
Physiological Effects: - Watching scary movies increases heart rate and breathing. - Stress can result in fainting or hyperventilation.

Central Processing: Brain processes threats (real or perceived), leading to physiological reactions. - Cannot differentiate between immediate physical threats (like a bear) and emotional threats (like an exam).
Hormonal Control: The brain regulates hormone release from glands to stimulate reactions. - Voluntary Processes: Muscle contraction, speaking, and voluntary movement. - Involuntary Processes: Breathing, heart rate, and blood vessel contraction.

Defense Mechanism: Immunity involves mucus membranes, lymphocytes, and antibodies that combat pathogens. - Immune system responds to infections via signals from the central nervous system.
Chronic Stress Impact: Prolonged stress diminishes the immune system's ability to combat germs and infections.

Definition of Stress: A physiological response to new, threatening, or exciting situations. It can be mental, emotional, or physical.
Types of Stress: - Eustress: Positive stress that enhances health and performance. - Distress: Negative stress that undermines health and performance.

Necessity of Stress: Some stress is crucial for physical and mental growth (e.g., exercise).
Optimal Stress Levels: - Low Stress: Leads to poor health and performance. - Optimal Stress: Moderate levels enhance health and performance. - High Stress: Exceeds healthy levels, causing distress.

Good vs Bad Stress: Foundational to understanding stress is recognizing that not all stress is detrimental. - Overwhelming good stressors can lead to negative outcomes if not managed. - Stressor Examples: Academic pressures, financial burdens, relationship issues.

Physiological Balance: Body maintains homeostasis through various mechanisms (e.g., regulating temperature, pH, heart rate).
Response Phases to Stress: 1. Alarm Reaction: Immediate response activating fight-or-flight mechanisms (sympathetic nervous system). 2. Resistance: Body resists stress using reserves to maintain homeostasis. 3. Exhaustion: Prolonged stress depletes reserves, leading to diminished bodily function.

Phases of GAS: - Alarm Reaction: Initial response marked by increased heart rate and blood pressure due to sympathetic nervous system activation. - Resistance: Attempt to cope with stress using body's reserves, leading to potential health issues if prolonged. - Exhaustion: Result of chronic stress leading to sickness, reduced immune function, and fatigue.

Health Risks Associated with Chronic Stress: - Increased likelihood of heart disease, hypertension, diabetes, depression, and potential cancer risks. - Chronic stress may impair learning and memory, and influence vulnerability to mental health disorders like Alzheimer's disease.

Common Stressors: - Academic pressures: School, exams, academic competition. - Financial problems: Money troubles, bills. - Intimacy and relationship issues: Conflicts in beliefs, major life choices. - Other pressures: College bureaucracy, social expectations.

Adaptation Strategies: Learning to cope with stress is essential, emphasizing that while stress is inevitable, managing its effects can safeguard health and maintain performance levels.
Aim to transition from heightened stress states back to homeostasis effectively to avoid chronic health issues associated with exhaustion and distress.