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Psychological Responses to Stress01:20

Psychological Responses to Stress

Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
Physiological Foundation of Stress01:24

Physiological Foundation of Stress

Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...

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Related Experiment Video

Updated: May 22, 2026

Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder
05:49

Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder

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Stress versus fear in cats

Franklin D McMillan

    Journal of the American Veterinary Medical Association
    |May 15, 2012
    PubMed
    Summary

    No abstract available in PubMed .

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