Depression and anxiety in mid-life and old age are already known to be risk factors for dementia,” said lead author Dr. Natalie Marchant of the University College London in England. “Here, we found that certain thinking patterns implicated in depression and anxiety could be an underlying reason why people with those disorders are more likely to develop dementia.”“Taken alongside other studies, which link depression and anxiety with dementia risk, we expect that chronic negative thinking patterns over a long period of time could increase the risk of dementia,” she continued. “We do not think the evidence suggests that short-term setbacks would increase one’s risk of dementia.
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