Consider the following sequence of events during a stressful episode in an individual’s life and place them in order of stages suggested by Selye in General Adaptation Syndrome (GAS):
A. Presence of Stressor
B. The para-sympathetic nervous system calls for more cautious use of the body’s resources. The organism makes efforts to cope with the threat.
C. Continued exposure to the same stressor or additional stressors drains the body of its resources and leads to exhaustion.
D. Activation of the adrenal-pituitary-cortex system triggers the release of hormones producing the stress response.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → A, D, B, C
Selye found the same pattern of bodily response to all stressors and called it the General Adaptation Syndrome. It has three stages: alarm reaction, resistance and exhaustion.
A. Presence of Stressor — first. The presence of a noxious stimulus or stressor starts the alarm reaction stage.
D. Activation of the adrenal-pituitary-cortex system triggers the release of hormones producing the stress response. — second. This is the rest of the alarm reaction: the individual is now ready for fight or flight.
B. The para-sympathetic nervous system calls for more cautious use of the body’s resources. The organism makes efforts to cope with the threat. — third. If stress is prolonged, the resistance stage begins.
C. Continued exposure to the same stressor or additional stressors drains the body of its resources and leads to exhaustion. — last. This is the exhaustion stage, in which stress-related diseases such as high blood pressure become more likely.
NCERT (2025-26): “General Adaptation Syndrome … What happens to the body when stress is prolonged? Selye studied this issue by subjecting animals to a variety of stressors such as high temperature, X-rays and insulin injections, in the laboratory over a long period of time. He also observed patients with various injuries and illnesses in hospitals. Selye noticed a similar pattern of bodily response in all of them. He called this pattern the General Adaptation Syndrome (GAS). According to him, GAS involves three stages: alarm reaction, resistance, and exhaustion (see Fig.3.3).
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