Stress response: mechanism of action for all antidepressants is unknown true, stress is a term initially associated with a behaviour or physiological processes hans. Selye coined the term, before stress was a play of a engineering term: walter canon, counsellor wanted to introduce him to unique diseases but he was exposed to overriding. Was not adopted in science community when he first used it sense of a lot of things in common that he saw: body feels irritable, weak, tired, loss of appetite, achy. Resistance to the problem, the stress: 3. Do you feel stress: asked participants to expose most embarrassing or stressful thing in the past year in front of a panel. Introduced in room, and camera on their face to induce stress. Professors also made to look very unsatisfied and no verbal feedback with a confused look or upset by response they are given.