Hans Selye - Work On Stress

Work On Stress

His last inspiration for general adaptation syndrome (GAS, a theory of stress) came from an endocrinological experiment in which he injected mice with extracts of various organs. He at first believed he had discovered a new hormone, but was proved wrong when every irritating substance he injected produced the same symptoms (swelling of the adrenal cortex, atrophy of the thymus, gastric and duodenal ulcers). This, paired with his observation that people with different diseases exhibit similar symptoms, led to his description of the effects of "noxious agents" as he at first called it. He later coined the term "stress", which has been accepted into the lexicon of various other languages.

Selye has acknowledged the influence of Claude Bernard (who developed the idea of milieu intérieur) and Walter Cannon's "homeostasis". Selye conceptualized the physiology of stress as having two components: a set of responses which he called the "general adaptation syndrome", and the development of a pathological state from ongoing, unrelieved stress.

Selye discovered and documented that stress differs from other physical responses in that stress is stressful whether one receives good or bad news, whether the impulse is positive or negative. He called negative stress "distress" and positive stress "eustress". The system whereby the body copes with stress, the hypothalamic-pituitary-adrenal axis (HPA axis) system, was also first described by Selye. He also pointed to an "alarm state", a "resistance state", and an "exhaustion state", largely referring to glandular states. Later he developed the idea of two "reservoirs" of stress resistance, or alternatively stress energy.

Selye wrote The Stress of Life (1956), From Dream to Discovery: On Being a Scientist (1964) and Stress without Distress (1974). He worked as a professor and director of the Institute of Experimental Medicine and Surgery at the Université de Montréal. In 1975 and 1979 respectively, Dr. Selye and eight Nobel Laureates founded the Hans Selye Foundation and the Canadian Institute of Stress.

In 1968 he was made a Companion of the Order of Canada.

In 2004, Selye's aim of making evidence-based, practice-focused training for health and workplace professionals available globally was realized in the launch of training for Certified Stress & Wellness Consultants via the World Wide Web. Selye was one of the highly productive scientists in the 20th century, with over 1,000 research publications, according a study by Kantha (1992).