Related Experiment Video
Updated: Jun 27, 2026

05:33
Measuring Biophysical and Psychological Stress Levels Following Visitation to Three Locations with Differing Levels of Nature
Published on: June 19, 2019
Quantifying stressors among Iowa farmers.
S A Freeman1, C V Schwab, Q Jiang
1Iowa State University, Ames, IA 50011-3130, USA. sfreeman@iastate.edu
Journal of Agricultural Safety and Health
|December 3, 2008
Summary
This study quantified farm stressors using a survey, finding that events like death of a spouse and financial issues are highly stressful for farmers. Stress levels are influenced by farmer demographics such as age and gender.
Area of Science:
- Agricultural Science
- Psychology
- Sociology
Background:
- Farmer and rancher mental health is a critical concern.
- Understanding specific stressors is vital for targeted support.
- Previous research has not comprehensively quantified farm-specific stressors.
Purpose of the Study:
- To identify and quantify particularly stressful events and activities for farmers and ranchers.
- To analyze how demographic factors influence the perception of farm stress.
Main Methods:
- A farm stress survey using the proportionate scaling method was mailed to 3000 Iowa farmers.
- Participants rated 62 life events and farm activities against a baseline stress level of marriage (50).
- Data were analyzed to determine mean stress ratings and variations by demographic characteristics.
Main Results:
- The death of a spouse or child, disabling injuries, and mortgage foreclosure were identified as the most stressful events.
- Machinery breakdown during harvest and crop loss due to weather were also significant stressors.
- Stress ratings varied significantly by farmer age, marital status, gender, and farming enterprise type.
Conclusions:
- The proportionate scaling method effectively quantifies farm stressors.
- The impact of farm stressors is not solely event-dependent but also influenced by individual farmer characteristics.
- Findings provide a basis for developing targeted interventions to mitigate farm stress.
Related Concept Videos
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...
Catastrophes
Catastrophes refer to large-scale, unpredictable events that create overwhelming stress and a sense of threat. Examples include natural disasters like...
Stress Concentrations
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 concentration...
The stress concentration...
Stress Concentrations
Stress concentration is when stress intensifies near discontinuities such as holes or abrupt cross-sectional changes in a structural member. This localized stress can often surpass the average stress within the member. The stress distribution in flat bars, either with a circular hole or varying widths connected by fillets, can be determined experimentally using a photoelastic method. The results are based on ratios of geometric parameters like the ratio of the hole's radius to the smaller width...
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...
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...
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...
Interestingly, the hidden cube faces also experience these stresses, equal and opposite to those on the...
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...

