Meaning of Stress
Stress is a body reaction to demands or changes in internal and external environment. Whenever there is a change in the external environment such as temperature, pollution, humidity and working conditions, it become to stress. These days of competition when one wishes to surpass what has been achieved by others, leading to …show more content…
Selye has defined stress as “the non-specific response of the body to any demand made upon it”. The concept of stress has been borrowed from the natural sciences. During the 18th and 19th century, stress was equated with “force, pressure or strain” exerted up on a material object or respondents which resists these forces and attempts to maintain its original state. The use of the concept in this fashion encouraged physicists and engineers into adopted to suit their ends. Thus, stress in engineering is known as “the ration of the internal force brought into play when a substance is distorted to the area over which the force acts.”
Stress as External Force
The external force approach to the phenomenon of stress focuses on the circumstances which people experience as stressful. Stress is treated as an independent variable, more or less beyond the control of the individual. According to the job stress stimuli are:
a) Speed-up information processing
b) Noxious environmental stimuli
c) Perceived threat
d) Disrupted psychological …show more content…
Alarm reaction is character by autonomous excitability; adrenalin discharge; increase rate, muscle tone, and blood content; and gastro-intestinal ulceration. Depending on the nature and intensity of threat and the conditions of the organism, the periods of resistance vary and the severity of symptoms may differ from a mild invigoration to the disease of adaption.
ii) Stage of Resistance: maximum adaption occurs during this stage. The bodily signs characteristic of the alarm reaction disappear. Resistance increases to levels above normal. If the stressor persists, or the defensive reaction proves ineffective, the organism deteriorates to the next stage.
iii) Stage of Exhaustion: Adaption energy is exhausted, signs of alarm reaction reappear and resistance level begins to decline irreversibly.
The major shortcoming of this theory is that the related research was carry out on infra-human being subjects, where the stressors are usually physical or environmental and this is not always the case in relation to human.