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.
How long can the brain go without oxygen? The brain cannot go without oxygen for more than ten minutes. If oxygen is not able to get to the brain before this, then there is a possibility of irreversible brain dama â¦ ge. Elepheyes