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Related Concept Videos

Components of Stress01:23

Components of Stress

243
Stress analysis under multiple loading conditions is intricate, necessitating a comprehensive grasp of normal and shearing stresses. Consider a small cube at point O, subjected to stress on all six faces, visible or not. Normal stress components σx, σy, σz act perpendicularly to the x, y, and z axes. Shearing stress components τxy and τxz are exerted on faces perpendicular to these axes.
Interestingly, the hidden cube faces also experience these stresses, equal and...
243
Types of Stressors01:23

Types of Stressors

229
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
Catastrophes refer to large-scale, unpredictable events that create overwhelming stress and a sense of threat. Examples include natural disasters like...
229
Psychological Responses to Stress01:20

Psychological Responses to Stress

76
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...
76
Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

145
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...
145
Physiological Foundation of Stress01:24

Physiological Foundation of Stress

85
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...
85
Stress Concentrations01:13

Stress Concentrations

257
The concept of stress concentration is crucial for understanding how materials respond under bending stresses, particularly when there are irregularities or discontinuities in the material's geometry. Normally, stress in a symmetric member subjected to pure bending is assumed to be uniformly distributed across the entire cross-section. However, this assumption does not hold when there are variations in the cross-sectional geometry or the presence of notches and holes.
The stress...
257

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Author Spotlight: Establishing a Rodent Model for Investigating Depression Factors in Traditional Mongolian Medicine
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A Call to Validate the Stress Continuum Model.

Vasudha Ram1, Eileen Delaney1, Scott Roesch1

  • 1Naval Center for Combat & Operational Stress Control (NCCOSC), San Diego, CA 92134, USA.

Military Medicine
|July 19, 2023
PubMed
Summary
This summary is machine-generated.

The Navy's Stress Continuum model, used to classify stress levels in personnel, was validated. The "ill" category accurately predicted higher perceived stress, suggesting individuals in this zone need professional intervention.

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Area of Science:

  • Military psychology
  • Psychological health assessment
  • Stress and coping mechanisms

Background:

  • Increased demands on military personnel and healthcare systems necessitate psychological health initiatives.
  • The Navy and Marine Corps developed the Stress Continuum model as a common language for identifying and intervening in stress reactions.
  • The Stress Continuum, while expert-endorsed, lacked empirical validation.

Purpose of the Study:

  • To empirically validate the Navy's Stress Continuum model.
  • To assess the classification quality of the Stress Continuum using a validated measure of psychological stress.

Main Methods:

  • Retrospective analysis of 2,049 individuals' Stress Continuum data.
  • Utilized Receiver Operating Characteristic (ROC) curves and the Perceived Stress Scale (PSS-4).
  • Evaluated the PSS-4's ability to differentiate between Stress Continuum categories.

Main Results:

  • The "ill" category of the Stress Continuum was predictive of higher perceived stress levels (PSS-4 cut point of 9).
  • The PSS-4 could not reliably differentiate between "ill" and "injured" or "reacting" categories.
  • The model suggests individuals in the "ill" zone require professional intervention.

Conclusions:

  • The Stress Continuum's "ill" category is a valid indicator of significant psychological stress.
  • Findings support the need for professional intervention for service members classified as "ill."
  • Continued validation and accessibility of the Stress Continuum are crucial for military mental health support.