myers’ psychology (6th ed)
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Myers’ PSYCHOLOGY (6th Ed). Chapter 17 Stress and Health James A. McCubbin, PhD Clemson University Worth Publishers. Chapter 17- Stress and Health. Recap from Yesterday…. Parent forms- turn in ASAP! Vocabulary- write each word and definition (due the day of each test)- February 2nd - PowerPoint PPT PresentationTRANSCRIPT
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Myers’ PSYCHOLOGY
(6th Ed)
Chapter 17Stress and Health
James A. McCubbin, PhDClemson University
Worth Publishers
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Chapter 17- Stress and Health
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Recap from Yesterday…
Parent forms- turn in ASAP! Vocabulary- write each word and definition
(due the day of each test)- February 2nd Reading Quiz- can use in-class notes and
any reading notes in a spiral- Monday, January 26th
Quilt Squares- also due Monday Erowancwhs.wikispaces.com- powerpoints
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What is Stress?Health Psychology- psychology’s
contribution to behavioral medicineStress - the process by which we
appraise and cope with threats and challenges How a person perceives and evaluates
and event makes a difference - the cognitive model of stress▪ Cognitive- thinking and understanding
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What is Stress?Stress
the process by which we perceive and respond to certain events, called stressors, that we appraise as threatening or challenging
StressorsCatastrophesLife changesHassles
InterveningfactorsAppraisalPerceived controlPersonalitySocial supportCoping behaviors
StressreactionsPhysiologicalEmotionalBehavioral
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Stress Appraisal
Stressful event(tough math test)
Threat(“Yikes! This isbeyond me!”)
Challenge(“I’ve got to apply
all I know”)
Panic, freeze up
Aroused, focused
Appraisal Response
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Stress and Health
▪ Leading causes of death in the US in 1900 and 1991
PercentageU.S.deaths
30
20
10
0 Tuber-culosis
Pneu-monia
Diarrhea/enteritis
Heartdisease
1900
PercentageU.S.deaths
30
20
10
0 Heartdisease
Cancer Strokes Chroniclung disease
1991
Unlike many leading killers a century ago,
today’s majorkillers are more lifestyle-related
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Physiological Reaction: Fight or Flight (Cannon)
When faced with a stressor, the body reacts with immediate arousal. ▪ Hormones are produced that increase the
amount of blood sugar for extra energy▪ Adrenaline is produced, causing rapid
heartbeat and breathing and enabling the body to use energy more quickly
Used to prepare a person or animal for self-defense
Left over from the past; doesn’t work for most of today’s stress
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What is Stress? General
Adaptation Syndrome Selye’s concept
of the body’s adaptive response to stress as composed of three stages
Stressresistance
Phase 1Alarm
reaction(mobilize
resources)
Phase 2Resistance(cope with stressor)
Phase 3Exhaustion(reservesdepleted)
The body’s resistance to stress can onlyLast so long before exhaustion sets in
Stressoroccurs
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1) Al
ar
m
Mobilization of fight or flight defensesExceptional alertness
2) Resistance
Find means to cope with the stressor, at least superficiallyMay suffer psychosomatic symptoms from pretending strain is nonexistent
3) Exhaustion
Reaching the breaking pointExhaustion and disorientation may developResponses that were good for immediate resistance to stress are detrimental in the long run
General Adaptation Syndrome (Selye)3 Stages of Stress Reactions:
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Stressful Life Events
Catastrophic Events earthquakes, combat stress, floods
Life Changes death of a loved one, divorce, loss of job,
promotion Daily Hassles
rush hour traffic, long lines, job stress, burnout
Gradually weaken the body’s defense system and can lead to hypertension
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Stress and Control (Selye)
Health consequences of a loss of control
No connection to shock source
To shock control To shock source
“Executive” rat “Subordinate” rat Control rat
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Measuring Stress The SRRS- Holmes
and Rahe› Measured stress using
LCU (life-change units)› Higher score =
higher likelihood of stress-related diseases
› PERCEPTION MATTERS!
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The SRRS
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Perceived Control
All are most stressful when perceived as negative and uncontrolled
The result is vulnerability to ill health and often earlier death
Losing control provokes an outpouring of stress hormones Examples: poverty, optimism
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What is Stress?Burnout
physical, emotional and mental exhaustion brought on by persistent job-related stress
Coronary Heart Disease clogging of the vessels that nourish
the heart muscle leading cause of death in the
United States
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Stress & Coronary Heart Disease
Hopelessnessscores
3.5
3
2.5
2
1.5
1
0.5
0 Heart attack DeathLow risk Moderate risk High risk
Men who feel extreme hopelessnessare at greater risk for heart attacksand early death
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Type A & Type B Personalities
Type A- in a chronic state of stress; almost constant flow of adrenaline into the blood stream
Type B- generally relaxed and patient
Type A people are more prone to heart disease▪ They are more likely to smoke more, sleep
less, and drink more caffeine▪ Their temperament may contribute directly-
more physiologically reactive when threatened with a lack of control
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Stress and Disease
Lymphocytes two types of white blood cells that are part of the body’s immune system▪ B lymphocytes form in the bone
marrow and release antibodies that fight bacterial infections▪ T lymphocytes form in the thymus
and, among other duties, attack cancer cells, viruses and foreign substances
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Stress and Disease
Psychophysiological Illness “mind-body” illness any stress-related physical illness▪ some forms of hypertension▪ some headaches
Different from hypochondriasis▪ misinterpreting normal physical sensations
as symptoms of a disease
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Stress and Disease
Conditioning of immune suppression; sweetened water alone could trigger immune suppression in rats
UCS(drug)
UCR(immunesuppression)
UCS(drug)
UCR(immunesuppression)
CS(sweetenedwater)
CS(sweetenedwater) CR
(immunesuppression)
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Promoting Health
Aerobic Exercise sustained
exercise that increases heart and lung fitness
may also alleviate depression and anxiety
Depressionscore
14
13
12
11
10
9
8
7
6
5
4
3 Before treatmentevaluation
After treatmentevaluation
No-treatmentgroup
Aerobicexercise
group
Relaxationtreatment
group
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Promoting Health Biofeedback system for
electronically recording, amplifying, and feeding back information regarding a subtle physiological state▪ blood pressure▪ muscle tension
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Promoting Health Modifying Type A life-style can reduce
recurrence of heart attacks
Percentageof patients
with recurrentheart attacks
(cumulativeaverage)
6
5
4
3
2
1
0
Year1978 1979 1980 1981 1982
Life-style modification patients
Control patientsModifying life-stylereduced recurrent
heart attacks
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Promoting HealthSocial support across the life span
12-14 18-19 25-34 45-54 65-74 15-17 20-24 35-44 55-64 75+ Age in years
100%
90
80
70
60
50
Percentagewith high
support
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Life events
Tendency towardHealth Illness
Personal appraisalChallenge Threat
Personality typeEasy going
NondepressedOptimistic
HostileDepressedPessimistic
Personality habitsNonsmoking
Regular exerciseGood nutrition
SmokingSedentary
Poor nutrition
Level of social supportClose, enduring Lacking
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Promoting Health ▪ Predictors of mortality
1
0.8
0.6
0.4
0.2
0
Men Women
Not smoking Regular exercise Weekly religious attendance
Relativerisk
of dying
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Alternative systems ofmedical practice
Bioelectromagneticapplications
Diet, nutrition,life-style changes
Herbal medicine
Manual healing
Mind-body control
Pharmacological and biological treatments
Subfields of Alternative MedicineHealth care ranging from self-care according to folk principles,to care rendered in an organized health care system based onalternative traditions or practices
The study of how living organisms interact with electromagnetic (EM) fields
The knowledge of how to prevent illness, maintain health, and reverse the effects of chronic disease through dietary or nutritional intervention
Employing plan and plant products from folk medicine traditionsfor pharmacological use
Using touch and manipulation with the hands as a diagnosticand therapeutic tool
Exploring the mind’s capacity to affect the body, based on traditional medical systems that make use of the interconnected-ness of mind and body
Drugs and vaccines not yet accepted by mainstream medicine
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Promoting Health Complementary and Alternative
Medicine unproven health care treatments
not taught widely in medical schools, not used in hospitals, and not usually reimbursed by insurance companies
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Promoting Health The religion factor is mulitidimensional
Religiousinvolvement
Healthybehaviors
(less smoking,drinking)
Social support(faith
communities,marriage)
Positiveemotions
(less stress,anxiety)
Better health(less immune systemsuppression, stress
hormones, and suicide)
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Promoting Health Smoking-related early deaths
40,000
30,000
20,000
10,000
0
33,348
1,686 1,135 556 202
Smoking Suicide Vehicle HIV/ Homicide crash AIDS
Cause of death
Numberof deaths
per 100,000
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Promoting Health Fewer Canadian smokers
Males
Females
1970 1974 1978 1982 1986 1990 1994- 1996- 1995 1997Year
60%
50
40
30
20
10
0
Percentageof Canadians
smoking
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Smoking Prevention
Smoking has made a partial comeback among U.S. teens
1975 1980 1985 1990 1995 1999Year
30%
25
20
15
10
5
0
Percentage ofU.S. high school
seniors whosmoke daily
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Smoking Prevention
Results of a smoking inoculation program
Percentageof studentswho smoke
20
15
10
5
0 0 4 9 12 16 21 33Seventh grade Eighth grade Ninth grade
Months of study
Control school
School with smokingPrevention program
Fewer teens took upsmoking when “inoculated” against it
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Obesity and Weight Control
Obesity and mortality
18.5 18.5- 20.5- 22.0- 23.5- 25.0- 26.5- 28.0- 30.0- 32.0- 35.0- 40 20.4 21.9 23.4 24.9 26.4 27.9 29.9 31.9 34.9 39.9
Body-mass index (BM I)Men Women
2.82.62.42.22.01.81.61.41.21.00.80.6
Relativerisk ofdeath
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Weight Discrimination
When women applicants were made to look overweight, subjects were less willing to hire
Willingnessto hire scale
(from1:definitely
not hire to7: definitely
hire)
0
1
2
3
4
5
6
7
Women Men
Normal Overweight
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Weight Control▪ Effects of a severe diet
Caloric intake
in caloriesper day
Body weight
in kilograms
Metabolism:Oxygen
consumptionin liters
per hour
3000
2000
1000
0 8 16 24 32
Days
165
160
155
150
145
140
Days Days
26
25
24
23
22
218 16 24 32 8 16 24 32
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Weight Control
Most lost weight is regained
-20
-15
-10
-5
0
5
10
1 2 3 4 5
Weightchange
in pounds
Posttreatment
Years of follow-up
Startingpoint
Normal trend for untreated obesepeople: Gradually rising weight
After participation in behavioralProgram: Much of initial weight
Loss regained
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Weight Control Obesity
was more common among those who watched the most television
<2 2-3 >4Hours of television watched per day
in 1990s study
Boys Girls
32
30
28
26
24
22
20
Skinfold fatmeasure (mm)
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7) Excessive time spend in the resistance phase of Selye’s general adaptation syndrome can contribute to› Increased time needed to adapt to new
emotional situations› Decreased motivation to perform novel taskes› Stress-related diseases like ulcers or heart
conditions› A reduction in the drive to achieve goals› Resistance to learning skills needed for novel
tasks
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8) Perceived control over a stressful event tends to result in Less reported stress More frustration regarding the stressful
event More motivation to solve the stressful
problem Increased arousal Higher hear and respiration rates