... time, with six hours rest in-between. Shocks were not signalled. Monkeys were run in pairs with one in each pair - the executive- able to press the lever to postpone the shock for 20 seconds. The other monkey could not press the lever, but received any footshocks ( a yoked control).On this type of schedule not all shocks can be avoided, and after many sessions, Brady and his colleagues found that many of the executives died of gastric ulceration. They concluded that the shocks themselves were not that stressful as the yoked controls were healthy, but it was the added stress of trying to avoid the shocks that fatally stressed the executives. Admittedly, this is a somewhat simplistic and experimentally- controlled example of the affect of stress on the health of animals. However, it does illustrate an inherent relationship between high stress levels and ill-health. Of course, human beings are more ...

See this essay or coursework document in full right now