Stressful experience may result in the inception of asthma, exacerbations, and. inadequate control. In this article we explore the relationship between psy-. chologic stress as an exacerbating factor of asthma and the mechanisms through. which this relationship may exist.
That sort of thing takes months or years. As for brain surgery, many last several hours. If done right, the type of brain surgery known as Deep Brain Stimulation takes at least six or seven hours, to implant electrodes in the target area of the brain.
The cochlear implant surgery takes about two to three hours. Very little hair is shaved behind the ear as the incision is small, usually just in the crease behind the ear. After surgery the patient is in the recovery room (PACU - post anesthesia care unit) for about one hour.