Answer :
Progressive fatigue is a physical and psychological process of exhaustion that occurs as a result of overwork and other stressors. The textbook argues that progressive fatigue is a cycle that is divided into four distinct phases. These four phases are the alarm phase, the resistance phase, the exhaustion phase, and the recovery phase.
The alarm phase is the initial reaction to the stressor. During this phase, the body releases hormones to activate the sympathetic nervous system and prepare to take action. This is known as the “fight or flight” response. This phase can often be accompanied by physical symptoms such as increased heart rate, sweating, and shallow breathing.
The resistance phase is the second stage of progressive fatigue. During this stage, the body attempts to adapt to the stressor, and the individual may become more resilient to the fatigue. The body is still able to fight the fatigue, and the individual may not experience any physical and psychological symptoms yet.
The exhaustion phase is the third stage of progressive fatigue. During this stage, the body’s resources have been depleted, and the individual may experience physical and psychological symptoms, such as difficulty concentrating, low energy, and headaches. At this point, the individual may feel overwhelmed and unable to cope with the stressor.
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