British scientists have found a significant link between later retirement age and later onset of dementia in men. The research is published in the International Journal of Geriatric Psychiatry.
This result came from an analysis of 382 men with probable Alzheimer's by scientists from the Institute of Psychiatry and Cardiff University. Information based on education and employment was used to determine the effects of early life education, mid life employment and later life retirement on the age of onset of dementia.
Sounds like yet another good reason to keep working in some capacity or another!