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Leisure exercise and physical labour show divergent links to dementia risk, study finds
Physical activity during leisure time may lower the risk of dementia, while physically demanding labour may raise it, a study found. An international team led by the University of Southern California analysed 74 studies covering more than 4.2 million people in 30 countries, followed for a median of 10 years. Leisure activity was linked to a 24 percent lower risk, while occupational activity was linked to a 20 percent higher risk.
