International health insurance customers might want to enquire about their options in terms of care when they reach a certain age.
Older people who have a spouse who is struggling with dementia have been found to be more likely to suffer from the condition themselves.
The research, published in the Journal of the American Geriatrics Society, suggested that the stress of caring for an ill loved one and sharing their lifestyle can increase the risks.
As such, expatriate health insurance customers can talk to their doctors about the other options available in terms of care.
According to Dr Simon Ridley, head of research at the Alzheimer's Research UK charity, the findings are nothing new.
However, he noted that much more research is needed before it can be said for sure that the strain of caring for someone with dementia increases the chances of the carer developing the condition.
Dr Ridley added: "Nevertheless, the paper underlines the fact that dementia does not just affect the 820,000 people in the UK who are diagnosed with the condition – it has a huge impact on their loved ones as well."
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