Stress - an unpleasant emotional state that results from the perception of danger - can be positive or negative
Stressor - The source of stress
People's stressors are highly individual and idiosyncratic
Diathesis-stress model - predicts that stress can contribute to the development of major depressive disorder (MDD), schizophrenia, post-traumatic stress disorder (PTSD), and other serious conditions
Walter Cannon - demonstrated the ability of a number of stressors to activate the sympathetic division of the autonomic nervous system
Extreme cold, lack of oxygen, and emotional experiences - all have the capacity to initiate a fight-or-flight response
Hans Selye - extended Cannon's findings by studying the effects of stronger, longer-lasting stressors
Selye tested stressors in rats - found that the rats responded with a consistent pattern of behaviour - labelled the general adaptation syndrome (GAS)
The GAS occurs in three stages
An alarm reaction - initiated when a stressor is first perceived and identified - same as fight or flight response
Resistance stage - continue to experience ongoing stress - requires us to adapt and cope as well as possible
Exhaustion stage - strength and energy drop to very low levels - can lead to death
Cognitive appraisal models help us to predict when a particular stimulus or event is likely to be a stressor for an individual person - primary appraisal and secondary appraisal
Primary appraisal - evaluate how relevant the situation is to our overall well-being - as well as whether the situation is consistent or inconsistent with our goals
Secondary appraisal - involves the evaluation of our resources and coping potential
Stress because of disasters can produce long-range and cross-generational effects. - PTSD, MDD, long term stress etc
Holmes and Rahe (1967) - compiled a list of life events that they believed might be correlated with stress - surveyed participants about the amount of adjustment that each event required
The scales were used to predict vulnerability to physical illness and psychological disorder because of different stressors
Hassles - Relatively insignificant sources of stress can contribute to a person's overall level of stress - Ex. waiting in long lines
Sensory information is sent to the cerebral cortex to identify potentially dangerous stimuli
Once the amygdala identifies danger - it communicates with the hypothalamus, which triggers the autonomic nervous system (ANS) - the sympathetic division responsible for the fight-or-flight response
Sympathetic Adrenal-Medullary (SAM) System - Triggers the release of adrenaline and norepinephrine into the bloodstream, causing immediate responses (ex. rapid heart rate, quick breathing)
Hypothalamic-Pituitary-Adrenal (HPA) Axis - The hypothalamus communicates with the pituitary gland, which signals the adrenal glands to release cortisol into the bloodstream, providing energy to cope with the stressor
High cortisol levels - can damage neurons particularly in the hippocampus
Chronic stress can inhibit neurogenesis - worsening the effects of stress on brain health
Cushing's disease - elevated cortisol levels, leads to hippocampal shrinkage, memory issues, sleep disturbances, and depression
The hippocampus - detects high cortisol levels - signals hypothalamus to reduce cortisol production - if feedback loop fails - continued cortisol release
Chronic stress can lead to further damage of the hippocampus - leads to disorders like PTSD and Major Depressive Disorder (MDD)
Fight-or-flight - often associated with male responses to stress
Tend-and-befriend - may be more typical for women - involves soothing children, forming social alliances, and protecting others
Oxytocin - a hormone linked to social bonding - released in response to stress, enhancing social support and caretaking behaviours in women
Chronic stress especially from social or environmental factors - contributes to poorer health outcomes, including immune suppression, and accelerates aging
Stress hormones - affect gene expression and brain structure, with long-term consequences for physical and mental health
HPA Axis - Chronic stress increases stress hormone responses, leading to hyperactivity of the norepinephrine system, reduced hippocampal volume, and heightened amygdala responses
Short-term stress - Can enhance immune function and boost biological systems for coping
Chronic stress - Suppresses immune system function, making the body more vulnerable to infections and diseases
Stress can stiffen blood vessel - increasing the risk of heart attacks - especially in people with pre-existing conditions like high blood pressure
Stress affects mood, sleep, health, and appetite - leading to negative impacts on health
Viktor Frankl’s Tragic Optimism - tragic optimism encourages finding ways to cope with challenges with courage and responsibility rather than asking "why me?"
Coping with stress involves using effective strategies such as controlling stressors, maintaining good health habits, exercising, and engaging in mindfulness
Social support and a sense of control are key factors in reducing stress, while poor social networks and lack of resources, especially in poverty, can exacerbate stress and mental health issues
Having a pet can also provide benefits to your health - can help with high blood pressure
Having religious beliefs helps them cope with stress
Coping with a stressor can take three forms - problem-focused, emotion-focused, and relationship-focused coping
Problem-focused coping - designed to address an issue head-on
Negative problem-focused coping - can include escape and avoidance
Emotion-focused coping - helps you deal with the negative emotions associated with a stressor
World Health Organization (WHO) - stated that physical health is important to improve mental health
Behaviours that contribute to our major causes of death - smoking, alcohol use, poor nutrition, lack of exercise, and loneliness, which are discussed in more detail in the following sections
Tobacco use remains a major public health issue - severe health consequences including increased risk of diseases and premature death
Adolescents and those with mental health struggles are particularly vulnerable to tobacco use - social support and self-tailored cessation programs can help
Proper nutrition is essential for brain development and overall health
Being underweight or obese is linked to various chronic conditions, including heart disease, stroke, and cancer
Exercise improves mood and cognitive function - regular exercise increases oxygen delivery to the brain, boosts neurogenesis, and enhances hippocampal function
Loneliness can lead to decreased impulse control, increased inflammation, and other long-term health consequences
Positive psychology - pioneered by Martin Seligman - emphasizes studying positive experiences like happiness, gratitude, love, and hope, which contribute to well-being
Humanistic psychology and cognitive-behavioral psychology - laid the foundation for positive psychology
Seligman’s learned optimism - suggests that optimism can be learned, just as helplessness can be unlearned
Hedonic Approach - Focuses on obtaining pleasure and avoiding pain
Eudaimonic Approach - Focuses on meaningfulness and self-realization
Transience of Happiness - Happiness is often fleeting and relative - it changes based on circumstances
Happiness Set Point - Research suggests we have a genetic "set point" for happiness - life experiences can temporarily raise or lower happiness from this point
Close relationships with family, friends, and romantic partners are central to happiness and meaningful life
Heritability - Some people experience more pleasure from activities than others
Habituation - Pleasurable experiences tend to lose their impact over time (ex. food, material items)
To improve happiness from the good life - identify strengths and incorporate them into work and hobbies
Flow - A state of deep engagement in an activity (work, creativity) where time seems to stand still
Traits Contributing to Well-Being - Hope, Resilience, Spirituality
Values - Enduring beliefs about preferable modes of conduct or goals
Virtue Correlation - People with higher value scores tend to have better self-esteem, lower violence, and fewer addictions, anxiety, and depression
Positive Institutions - places that foster well-being like workplaces and schools - have an emphasis on clear goals, fairness, reciprocity, respect, and safety
Job - Focused on supporting family - without seeking fulfillment from work
Career - Provides status and achievement - fulfilling more personal and professional needs
Calling - Combines personal achievement with contributing to the community - less concerned with money and status
Positive Workplaces - A workplace that helps individuals achieve personal goals leads to greater satisfaction and well-being
Positive Schools - Schools that promote growth and satisfaction in students lead to positive outcomes like higher grades and fewer behavioural problems
Family-Centered Positive Psychology (FCPP) - Focuses on strengths of families rather than their weaknesses, aiming to improve family dynamics and overall satisfaction