homeostasis

On World Health Day 2020, let’s discuss the stress response and the General Adaptation Syndrome (2/3)

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The hypothalamus–pituitary–adrenal (HPA) axis acts to release cor­ti­sol into the blood stream, as cor­ti­sol calls the body into action to com­bat stress. When high amounts of cor­ti­sol inter­act with the hypo­thal­a­mus, the HPA axis will slow down its activ­i­ty. The amyg­dala detects stress, while the pre­frontal cor­tex reg­u­lates our reac­tions to stress. Source: Bezdek K and Telz­er E (2017) Have No Fear, the Brain is Here! How Your Brain Responds to Stress. Front. Young Minds. 5:71. doi: 10.3389/frym.2017.00071

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[Editor’s note: Con­tin­ued from yes­ter­day’s Explor­ing the human brain and how it responds to stress (1/3)]

Stress was put on the map, so to speak, by a Hun­gar­i­an — born Cana­di­an endocri­nol­o­gist named Hans Hugo Bruno Selye (ZEL — yeh) in 1950, when he pre­sent­ed his research on rats at the annu­al con­ven­tion of the Amer­i­can Psy­cho­log­i­cal Asso­ci­a­tion. To explain the impact of stress, Selye pro­posed some­thing he called the Gen­er­al Adap­ta­tion Syn­drome (GAS), which he said had three com­po­nents. Accord­ing to Selye, when an organ­ism expe­ri­ences some nov­el or threat­en­ing stim­u­lus it responds with [Read more…] about On World Health Day 2020, let’s dis­cuss the stress response and the Gen­er­al Adap­ta­tion Syn­drome (2/3)