Lecture 4 Flashcards
Stressor
Stimulus causing the stress reaction
Stress
Physiological state of the body triggered by stressor
Stress hormones
Epinephrine, cortisol and NE
Stress reactions
BP increase HR increase Muscle tension Alertness Blood glucose and fatty acids is increasing
Positive Stress
Thinking Faster Problem solving creativity increased attention Evolutionary purposes e.g. immunity to stress
HPA axis
You know it from physiology
Telomere shortening
shortens in correlation to chronic stress
Epigenetics
Changes expressivity based on available chromatin and not the DNA sequence
Holmes and Rahe life event scale
Important life events and score on a scale e.g. Death of spouse 100 while changing diet is 15
Main stressors in working population
Work 75% and finances 68% coworkers 48%
Burnout
Reaction to prolonged or chronic job stress leading to: emotional exhaustion, depersonalisation, and reduced performance
Stress behavioural risk factors
Diet, tobacco, alcohol, and physical inactivity
Stress, non modifiable risk factors
sex age and genes
End points of stress
Coronary heart disease, stroke, several cancer, and COPD
Socio-economic, cultural, and environmental conditions of stress:
Modernisation, mechanisation, urbanisation, and globalisation