Calm, sociable people might be less at risk of developing dementia than isolated, anxious ones according to a study of 506 older people by researchers at the Karolinska Institute, in Sweden. None of the participants in the study had dementia when they were first examined. The participants were given questionnaires to assess their personality traits and lifestyles and their health was assessed over a six-year period. The more socially active and less-stressed participants were 50% less likely to be diagnosed with dementia over the course of the study.
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