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Introduction to Stress and Lifestyle

Introduction to Stress and Lifestyle

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...

Psychological Responses to Stress

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...

Components of Stress

Components of Stress

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 opposite to those on the...

Applications of Stress

Applications of Stress

Consider a structure made of a boom and a rod designed to support a load. These two components are connected by a pin and stabilized by brackets and pins. The boom and the rod are detached from their supports to assess the different stresses imposed on this structure, and a free-body diagram is drawn. Then, all the forces applied, including the load acting on the structure, are identified. The reaction forces exerted on both the boom and the rod are computed using the equilibrium equations.
The...

General State of Stress

General State of Stress

The general state of stress within a material can be accurately depicted using a stress tensor. This tensor encapsulates the internal forces distributed within a material subjected to external forces or deformations.
Specifically, consider a tetrahedral element where one face, labeled XYZ, is perpendicular to the line OA, and the remaining faces align with the coordinate axes with point O as the origin. At any point, such as point O, the stress tensor can be used to determine the stress...

Types of Stressors

Types of Stressors

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...

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Related Experiment Video

Updated: May 11, 2026

Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants

Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants

Published on: June 13, 2021

Antenatal stress: an Irish case study.

Mary Carolan-Olah¹, Maebh Barry²

¹School of Nursing and Midwifery, St Alban's Campus, Victoria University, PO Box 14228, Melbourne 8001, Australia.

|May 21, 2013

Summary

This summary is machine-generated.

This study found high levels of antenatal stress, anxiety, and depressive symptoms in low-risk pregnant women in Ireland. Early recognition and treatment are crucial for maternal and infant well-being.

Keywords:

Anxiety Depressive symptoms Pregnancy Stress

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Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants

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Published on: October 19, 2011

Area of Science:

Maternal Health
Psychological Well-being in Pregnancy
Public Health

Background:

Pregnancy stress is common, negatively impacting women, infants, and families.
Financial concerns, marital discord, and low support systems contribute to high stress levels.
Socio-economic factors significantly influence maternal stress during pregnancy.

Purpose of the Study:

To evaluate stress, anxiety, and depressive symptoms in low-risk pregnant women.
Focus on women in an Irish region impacted by the 2008 economic crisis.
Assess mental health status during the second trimester of pregnancy.

Main Methods:

Quantitative descriptive cross-sectional study design.
Utilized Edinburgh Postnatal Depression Scale (EPDS), Perceived Stress Scale (PSS), and State Trait Anxiety Inventory (STAI).
Data collected during the second trimester from women attending routine antenatal care.

Main Results:

High prevalence of stress, anxiety, and depressive symptoms reported.
86.5% scored indicative of probable antenatal depression (EPDS ≥ 12).
74.3% indicated antenatal anxiety (STAI ≥ 39), with high PSS scores observed.

Conclusions:

Significant levels of antenatal stress, anxiety, and depressive symptoms found in a low-risk population.
Findings highlight implications for fetal development and maternal health.
Recommends further longitudinal studies and early intervention for mental health conditions.