London, Feb 25 : Long working hours can raise the risk of dementia, a new study has warned.
What’s more, extreme tiredness and tension could be as harmful for the brain as smoking, the study published in the American Journal of Epidemiology found.
The study found that middle-aged workers clocking up more than 55 hours a week have poorer mental skills, including short-term memory and ability to recall words, than those working fewer than 41 hours.
To reach the conclusion, researchers led by Dr Marianna Virtanen from the Finnish Institute of Occupational Health monitored 2,214 British civil servants from the 1980s, reports The Telegraph.