Chapter 10: Overload and Underload (PP ch 13) Flashcards
Stress Types (2) Stress Characteristics (2)
Eustress = cope, learn, adapt
Distress = out of control
Subjectif and cumulatif
Stressors Types (5)
Environmental Life (not work) Organisational (work) Reactive Anxiety
Environmental Stressors (6) What does environmental stressor do to body?
Homeostastis strained / nullified bc. of Env. stressors
Internal: hungry, fatigue External: Temperature (hypothermia & hyperthermia) Vibrations Noise Humidity Glare
Hypothermia Stages (2) and few symptoms Hyperthermia Stages (2) and few symptoms
< 35C: shiver, vasoconstriction, pale, aparthy, frostbite
< 32C: stop shiver, unconscious, death
> 38C: heat exertion, dehydration
> 40C: heat stroke, nausea, fatigue, brain swelling
Vibration Stressor Ranges (5) and few symptoms
1 - 4 Hz: breathing, neck pain 4 - 10: chest, abdominal pain 8 - 12: back ache 10 - 20: headache, eye strain, speech difficulties 30 - 40: visual acuity
Humidity
Ideal Humidity, AC Humidity
Help with Humidity
Body Adaptation Time for Hot/Humid Climate
Ideal = 40 - 60%
AC = 10 - 20% as low as 3%
use aqueous creams
2 weeks
Biggest Reason for Life / Organisational Stressor
What is Reactive Stressor
Life = death of spouse
Reactive = can’t cope with task
i.e. running out of time, task too great
Organisational: lack of hands on flying
Arousal
What is? What NS? Effects of acute stress on body (7)
What call 3 stages of acute stress
Body response to stress
Sympathetic
Effects: HR, breathing, blood sugar, sweating, slow digestion, strength+, senses+
Selye’s general adaptation syndrome (GAS)
GAS
What is? Stages (3) + Chemicals Released Stage 1 + 2
Selye’s general adaptation syndrome (GAS)
Stage 1: alarm
adrenaline (epinephrine), corticosteroids (release sugar)
Stage 2: resistance
if pb dealt -> remove waste product
if not -> cortisone (painkiller)
Stage 3: Exhaustion
strain on body, hearing -, long term damage if sustained
GAS Reactions Type (3)
Psychological
Psychosomatic ( hormones, chemicals)
Somatic
Stress Curve
Shape? Parts Curve (3)? Particular Point on Curve?
Parabolic shape Under aroused = sub obtimal Moderate = optimal Over aroused = stress zone Break point = small tasks become hard
Overload
Psychological (12), Emotional (4), Physical (5) Symptoms
Psy: errors, prioritize-, confirmation bias, approx, tunneling, filtering, regression, escape, concentration, decision making, fast execution
Emotional: anxious, nervous, teary, depressed
Phy: digestion, strokes, heart attack, dry mouth, tense muscles
Underload
Symptoms (5)
Bored, sleepy, situational awareness, performance, complacency
Stress Coping
Approaches (3)
Direction action: remove stressor, remove yourself
Cognitive coping: rationalize
Symptom directed coping: treat symptoms
Stress Management
Ways of Minimizing Stress (3)
Preventive: keep stress mini
Curative: reduce effect of existing stress
Sports, relaxation techniques, counseling