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Related Concept Videos

Psychological Responses to Stress01:20

Psychological Responses to Stress

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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...
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Physiological Foundation of Stress01:24

Physiological Foundation of Stress

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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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Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

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Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
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Psychoneuroimmunology: Cardiovascular Disease01:27

Psychoneuroimmunology: Cardiovascular Disease

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Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
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Hypothalamic-Pituitary Axis01:37

Hypothalamic-Pituitary Axis

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The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
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Types of Stressors01:23

Types of Stressors

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A stressor is any event, condition, or stimulus that triggers stress and causes a physical or psychological response in the body. Stressors can be categorized into three main types: catastrophes; significant life changes; and daily hassles, including social stress. Each can be detrimental to physical and mental well-being.
Catastrophes
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[The length of chromatin loops in meiotic prophase I of warm-blooded vertebrates depends on the DNA compositional organization].

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Psychophysiological Stress Assessment Using Biofeedback
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[PSYCHOPHYSIOLOGICAL ASPECTS OF THE STRESS PROBLEM].

E P Khudyakova, O I Karpova

    Aviakosmicheskaia I Ekologicheskaia Meditsina = Aerospace and Environmental Medicine
    |March 4, 2016
    PubMed
    Summary

    Stress is a holistic psychophysiological reaction to stimuli, involving both physiological and psychological responses. This adaptive process can positively or negatively impact health and performance.

    Area of Science:

    • Psychophysiology
    • Psychology
    • Stress Research

    Context:

    • Literature review on stress phenomenology and mechanisms.
    • Exploration of physiological and psychological stress analysis approaches.

    Purpose:

    • Define stress as a holistic adaptive psychophysiological reaction.
    • Analyze the multifaceted nature of stress responses.
    • Examine the role of stress in adaptation.

    Summary:

    • Stress is a nonspecific organismic response to physical or emotiogenic stimuli.
    • Characterized by specific physiological and psychological changes.
    • Integral to both physiological and personality adaptation.

    Impact:

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  • Stress reactions can have both detrimental and beneficial effects.
  • Influence on human health and performance outcomes.
  • Understanding stress mechanisms is crucial for adaptation strategies.