Willis and Rater: Is Boredom a Factor to the Mental Retirement Effect?

In the u.S, more than twenty per cent of people over the age of sixty four are still in the work force. In spain, only two point five per cent of that age group are still working for pay. Willis calls this cognitive decline the mental retirement effect. He is fairly confident the effect is causal, that retirement leads to lower cognitive levels. But as to the why, we don't really understand the underlying mechanisms very well. We asked willis whether boredom might have anything to do with the mental retirement Effect....