Stress and Health
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Stress and Stress and HealthHealth
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Behavioral MedicineBehavioral Medicine
Centers for Disease Control (CDC) claim Centers for Disease Control (CDC) claim that half of the deaths in the US are due to that half of the deaths in the US are due to people’s behaviors (smoking, alcoholism, people’s behaviors (smoking, alcoholism,
unprotected sex, insufficient exercise, unprotected sex, insufficient exercise, drugs, and poor nutrition).drugs, and poor nutrition).
Psychologists and physicians have thus Psychologists and physicians have thus developed an interdisciplinary field of developed an interdisciplinary field of behavioral medicine that integrates behavioral medicine that integrates behavioral knowledge with medical behavioral knowledge with medical
knowledge.knowledge.
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Health PsychologyHealth Psychology
Health psychology is a field of psychology Health psychology is a field of psychology that contributes to behavioral medicine. that contributes to behavioral medicine.
The field studies stress-related aspects of The field studies stress-related aspects of disease and asks the following questions:disease and asks the following questions:
1. How do emotions and personality factors influence the risk of disease?
2. What attitudes and behaviors prevent illness and promote health and well-being?
3. How do our perceptions determine stress?
4. How can we reduce or control stress?
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Stress can be adaptive. In a fearful or stress- Stress can be adaptive. In a fearful or stress- causing situation, we can run away and save causing situation, we can run away and save our lives. Stress can be maladaptive. If it is our lives. Stress can be maladaptive. If it is prolonged (chronic stress), it increases our prolonged (chronic stress), it increases our
risk of illness and health problems.risk of illness and health problems.
Stress and IllnessStress and Illness
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Stress and Causes of Stress and Causes of DeathDeath
Prolonged stress combined with unhealthy Prolonged stress combined with unhealthy behaviors may increase our risk for some behaviors may increase our risk for some
of today's leading diseases.of today's leading diseases.
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Stress and StressorsStress and Stressors
Stress is a slippery concept. At times it is Stress is a slippery concept. At times it is the the stimulusstimulus (missing an appointment) and (missing an appointment) and
at other times it is a at other times it is a responseresponse (sweating (sweating while taking a test).while taking a test).
StressorsStressors
Stress ReactionsStress Reactions
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Stress and StressorsStress and Stressors
Stress is not merely a stimulus or a Stress is not merely a stimulus or a response. It is a process by which we response. It is a process by which we appraise and cope with environmental appraise and cope with environmental
threats and challenges.threats and challenges.
When short-lived or taken as a challenge, When short-lived or taken as a challenge, stressors may have positive effects. However, if stressors may have positive effects. However, if
stress is threatening or prolonged, it can be stress is threatening or prolonged, it can be harmful.harmful.
Bob D
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The Stress Response The Stress Response SystemSystem
Canon proposed Canon proposed that the stress that the stress
response (fast) was response (fast) was a fight-or-flight a fight-or-flight
response marked by response marked by the outpouring of the outpouring of epinephrineepinephrine and and norepinephrinenorepinephrine from the inner from the inner adrenal glands, adrenal glands, increasing heart increasing heart and respiration and respiration
rates, mobilizing rates, mobilizing sugar and fat, and sugar and fat, and
dulling pain.dulling pain.
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The Stress Response The Stress Response SystemSystem
The hypothalamus The hypothalamus and the pituitary and the pituitary
gland also respond gland also respond to stress (slow) by to stress (slow) by
triggering the outer triggering the outer adrenal glands to adrenal glands to
secrete secrete glucocorticoidsglucocorticoids
(cortisol).(cortisol).
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General Adaptation General Adaptation SyndromeSyndrome
According to Selye, a stress response to any kind ofstimulation is similar. The stressed individual goes
through three phases.
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Stressful Life EventsStressful Life Events
Catastrophic Events:Catastrophic Events: Catastrophic events Catastrophic events like like earthquakes, combat stress, and earthquakes, combat stress, and
floods lead individuals to become floods lead individuals to become depressed, sleepless, and anxious. depressed, sleepless, and anxious.
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Significant Life ChangesSignificant Life Changes
The death of a loved one, a divorce, a loss The death of a loved one, a divorce, a loss of job, or a promotion may leave of job, or a promotion may leave individuals vulnerable to disease.individuals vulnerable to disease.
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Daily HasslesDaily Hassles
Rush hour traffic, long lines, job stress, and Rush hour traffic, long lines, job stress, and becoming burnt-out are the most significant becoming burnt-out are the most significant
sources of stress and can damage healthsources of stress and can damage health
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Stress and the HeartStress and the Heart
Stress that leads to elevated blood pressure may Stress that leads to elevated blood pressure may result in Coronary Heart Disease, a clogging of result in Coronary Heart Disease, a clogging of
the vessels that nourish the heart muscle.the vessels that nourish the heart muscle.
Plaque incoronary artery
Arteryclogged
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Personality TypesPersonality Types
Type AType A is a term used for competitive, hard-is a term used for competitive, hard-driving, impatient, verbally aggressive, and driving, impatient, verbally aggressive, and
anger-prone people. anger-prone people. Type BType B refers torefers to easygoing, easygoing, relaxed people (Friedman and Rosenman, 1974).relaxed people (Friedman and Rosenman, 1974).
Type A personalities are more likely to developcoronary heart disease.
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Stress and the Immune Stress and the Immune SystemSystem
B lymphocytes fight bacterial infections, T B lymphocytes fight bacterial infections, T lymphocytes attack cancer cells and viruses, lymphocytes attack cancer cells and viruses, and microphages ingest foreign substances. and microphages ingest foreign substances.
During stress, energy is mobilized away from During stress, energy is mobilized away from the immune system making it vulnerable.the immune system making it vulnerable.
Lennart N
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mbH
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Stress and ColdsStress and Colds
People with the highest life stress scores People with the highest life stress scores were also the most vulnerable when were also the most vulnerable when
exposed to an experimental cold virus.exposed to an experimental cold virus.
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Stress and CancerStress and Cancer
Stress does not create cancer cells. Stress does not create cancer cells. Researchers disagree on whether stress Researchers disagree on whether stress
influences the progression of cancer. influences the progression of cancer.
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Health-Related Health-Related ConsequencesConsequences
Stress can have a variety of health-Stress can have a variety of health-related consequences.related consequences.
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Coping with StressCoping with Stress
Problem-focused coping Problem-focused coping refers to reducing refers to reducing stress by changing events that cause the stressstress by changing events that cause the stress..
For example: changing jobsFor example: changing jobs
Emotion-focused copingEmotion-focused coping is when we is when we cannot change a stressful situation, and cannot change a stressful situation, and
we respond by attending to our emotional we respond by attending to our emotional needs.needs.
For example: seeking social supportFor example: seeking social support
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Perceived ControlPerceived Control
Research with rats and humans indicates Research with rats and humans indicates that the absence of control over stressors that the absence of control over stressors
is a predictor of health problems.is a predictor of health problems.
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Explanatory StyleExplanatory Style
People with an optimistic (instead of People with an optimistic (instead of pessimistic) explanatory style tend to have pessimistic) explanatory style tend to have more control over stressors, cope better more control over stressors, cope better with stressful events, have better moods, with stressful events, have better moods,
and have a stronger immune system.and have a stronger immune system.
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Pessimism and Heart Pessimism and Heart DiseaseDisease
Pessimistic adult men are twice as likely to Pessimistic adult men are twice as likely to develop heart disease over a 10-year develop heart disease over a 10-year
period (Kubzansky et al., 2001).period (Kubzansky et al., 2001).
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Social SupportSocial Support
Supportive family members, marriage partners, Supportive family members, marriage partners, and close friends help people cope with stress. and close friends help people cope with stress.
Their immune functioning calms the Their immune functioning calms the cardiovascular system and lowers blood pressure.cardiovascular system and lowers blood pressure.
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Managing StressManaging Stress
***Having a sense of control, an optimistic ***Having a sense of control, an optimistic explanatory style, and social support can explanatory style, and social support can
reduce stress and improve health.reduce stress and improve health.
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Biofeedback, Relaxation, and Biofeedback, Relaxation, and MeditationMeditation
BiofeedbackBiofeedback systems systems use electronic devices to use electronic devices to
inform people about inform people about their physiological their physiological
responses and gives responses and gives them the chance to bring them the chance to bring
their response to a their response to a healthier range. healthier range. Relaxation and Relaxation and
meditationmeditation have similar have similar effects in reducing effects in reducing
tension and anxiety.tension and anxiety.
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Promoting HealthPromoting Health
Promoting health is generally defined as Promoting health is generally defined as the absence of disease. We only think of the absence of disease. We only think of health when we are diseased. However, health when we are diseased. However, health psychologists say that promoting health psychologists say that promoting health begins by preventing illness and health begins by preventing illness and
enhancing well-being, which is a constant enhancing well-being, which is a constant endeavor.endeavor.
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Aerobic ExerciseAerobic Exercise
Can aerobic exercise Can aerobic exercise boost spirits? Many boost spirits? Many studies suggest that studies suggest that aerobic exercise can aerobic exercise can
elevate mood and well-elevate mood and well-being because aerobic being because aerobic exercise raises energy, exercise raises energy,
increases self-increases self-confidence, and lowers confidence, and lowers
tension, depression, tension, depression, and anxiety.and anxiety.
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Life-StyleLife-Style
Modifying a Type-A lifestyle may reduce Modifying a Type-A lifestyle may reduce the recurrence of heart attacks.the recurrence of heart attacks.
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Spirituality & Faith Spirituality & Faith CommunitiesCommunities
Regular religious attendance has been a Regular religious attendance has been a reliable predictor of a longer life span reliable predictor of a longer life span
with a reduced risk of dying.with a reduced risk of dying.
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Intervening FactorsIntervening Factors
Investigators suggest there are three Investigators suggest there are three factors that connect religious involvement factors that connect religious involvement
and better health.and better health.
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Managing Stress: Managing Stress: SummarySummary
How can stress be managed?How can stress be managed?
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Modifying Illness-Related Modifying Illness-Related BehaviorsBehaviors
The elimination of smoking would The elimination of smoking would increase life expectancy more than any increase life expectancy more than any
other preventive measure.other preventive measure.
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Obesity and MortalityObesity and Mortality
The death rate is high among very The death rate is high among very overweight men.overweight men.
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ActivityActivity
Lack of exercise is a major contributor to Lack of exercise is a major contributor to obesity. Just watching TV for two hours obesity. Just watching TV for two hours
resulted in a 23% increase of weight when resulted in a 23% increase of weight when other factors were controlled (Hu et al., other factors were controlled (Hu et al.,
2003).2003).
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Food ConsumptionFood Consumption
Over the past 40 years average weight Over the past 40 years average weight gain has increased. Health professionals gain has increased. Health professionals
are pleading with US citizens to limit their are pleading with US citizens to limit their food intake.food intake.
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Trading RisksTrading Risks
Although cigarette smoking has declined Although cigarette smoking has declined over the years in the Americas, obesity is over the years in the Americas, obesity is
on the rise.on the rise.
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Losing WeightLosing Weight
In the US, two-thirds of the women and In the US, two-thirds of the women and half of the men say that they want to lose half of the men say that they want to lose weight. The majority of them lose money weight. The majority of them lose money
on diet programs.on diet programs.
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Alternative MedicineAlternative MedicineOther medicinal ways of achieving healthOther medicinal ways of achieving health