Isolation risks brain health more than loneliness

A global study involving nearly 175,000 people over the age of 50 revealed that feelings of loneliness are a key indicator of cognitive decline and progression toward dementia. An increase in feelings of loneliness by 10% was associated with a 8% rise in the likelihood of severe cognitive impairment. The study distinguished between social isolation and loneliness, emphasizing that a sense of belonging is more important than the number of people around. It also highlighted that including questions about loneliness in medical assessments could help in early detection of individuals at risk of dementia.

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