General adaptation syndrome (GAS) is a three-stage response that the body has to stress. Possible causes include psychological stress and life events. Stress is sometimes thought of as a mental ...

The World Health Organisation defines stress as any type of change that causes physical, emotional or psychological strain. The Hungarian-Canadian endocrinologist Hans Selye developed the concept of a ...

General adaptation syndrome (GAS), also known as Selye's syndrome, describes the changes your body goes through when you experience stress. It involves three stages of stress-induced changes: your ...