Short and long sleep, and sleep disturbances associated with increased risk of dementia and lung cancer
(WorldNews Finland)

Difficulties in initiating or maintaining sleep at middle-age are associated with an increased risk of dementia, according to a new study from the University of Eastern Finland. The 20-year follow-up study was conducted among 2,682 men participating the Kuopio Ischaemic Heart Disease Study. The study participants were aged 42-60 years at the baseline examinations in 1984-1989. Shorter or longer sleep than 7-7.5 hours related independently with an increased...