General Adaptation Syndrome(GAS) Measurement

Homeostasis is a state of physiological calmness or balance, and it occurs when our bodily functions are running smoothly in conjunction with low stress levels.  When exposed to stressors, these cause an imbalance to occur as the body responds to the perceived threat, and then tries to return to moderate functioning. The general adaptation syndrome (GAS), developed by Hans Selye, describes the pattern of responses that the body goes through after being prompted by a stressor.  There are three stages:  alarm, resistance, and exhaustion.1

SLTLab's Wellness App presents the GAS stage by evaluating the human stress levels and resilience based on research from the Survivability Signal Intelligence Research Center (CRC), funded by the National Research Foundation of Korea. We also provide users with information on the physical and mental symptoms2 that can occur in accordance with the GAS.3

The Wellness App should only be used as a reference for health and well-being, and it cannot be used to diagnose a disease or other condition or to treat, alleviate, or prevent disease. If you believe you are in need of medical assistance, please call your doctor.

GAS Level Descriptions

Alarm reaction stage

The alarm reaction stage occurs when you are exposed to a harmful stimulus. The physical symptoms include headaches, muscle and joint pain, loss of appetite, fatigue, etc. The psychological symptoms include a vague feeling of anxiety, annoyance, shortened attention, and insomnia.

Resistance Stage

As the exposure to stress sources increases, the body's resistance to stressors increases with an increase in adrenal cortical stimulation hormones (cortisol). Physical symptoms include a decrease in immune function, increase in blood pressure. The psychological symptoms include chronic anxiety and a short temper.

Exhaustion Stage

Physical and psychological health is at risk due to exhaustion of adaptive energy and resistance by continuous, strong sources of stress. Physical symptoms include possible occurrence of gastric ulcers, digestive disorders, cardiovascular disease, and hyperthyroidism. Psychological symptoms burn-out phenomena such as chronic depression, and anxiety.

Resilience

Stress Level

GAS Level

High 

High

Resistance

Caution

Alarm Reaction

Moderate

Relax

Low

Relax

Moderate

High

Resistance

Caution

Alarm Reaction

Moderate

Alarm Reaction

Low

Relax

Caution

High

Resistance

Caution

Resistance

Moderate

Alarm Reaction

Low

Relax

Low 

High

Exhaustion

Caution

Resistance

Moderate

Alarm Reaction

Low

Relax

 

References

[1] Medically reviewed by Timothy J. Legg, Ph.D., CRNP — Written by Valencia Higuera — Updated on October 6, 2018
https://www.healthline.com/health/general-adaptation-syndrome. (2018). Retrieved from url

[2] https://courses.lumenlearning.com/suny-monroecc-hed110/chapter/general-adaptation-syndrome  (2018). Retrieved from url

[3] Medically reviewed by Timothy J. Legg, Ph.D., CRNP — Written by Lana Burgess on November 28, 2017
https://www.medicalnewstoday.com/articles/320172. (2017). Retrieved from urledically reviewed by Timothy J. Legg, Ph.D., CRNP — Written by Lana Burgess on November 28, 2017