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 time it takes for heart surgery varies with what procedures are being performed. It may be as short as 3 hours for a minimally invasive procedure or over 10 hours for heart transplant. I always encourage families to not watch the clock..