Marriage may lower the risk of developing dementia

Marriage may help stave off dementia, study finds | Journal of Neurology Neurosurgery & Psychiatry

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Researchers combining the results of 15 studies including data on more than 800,000 participants have found  that lifelong singletons and widowers appear to have a heightened risk of developing dementia.

Analysis of the data showed that lifelong singletons were 42% more likely to develop dementia than those who were married, and widowers were 20% more likely to develop the condition. Part of this risk might be explained by poorer physical health among lifelong single people, suggest the researchers.  Marriage may help both partners to have healthier lifestyles, including exercising more, eating a healthy diet, and smoking and drinking less, all of which have been associated with lower risk of dementia. Couples may also have more opportunities for social engagement than single people – a factor that has been linked to better health and lower dementia risk, the researchers suggest.

Full reference: Sommerlad A, et al. | Marriage and risk of dementia: systematic review and meta-analysis of observational studies |  Journal of Neurology Neurosurgery & Psychiatry | published online 28 November 2017

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