Long hours link to dementia risk
Long working hours may raise the risk of mental decline and possibly dementia, research suggests.
The Finnish-led study was based on analysis of 2,214 middle-aged British civil servants.
It found that those working more than 55 hours a week had poorer mental skills than those who worked a standard working week.
The American Journal of Epidemiology study found hard workers had problems with short-term memory and word recall.
Lead researcher Dr Marianna Virtanen, from the Finnish Institute of Occupational Health, said: “The disadvantages of overtime work should be taken seriously.”
It is not known why working long hours might have an adverse effect on the brain.