People who develop hand and head tremors have a three-fold increased risk of dementia.
Dementia is three times more common in people with essential tremor, scientists have found.
According to the American Academy of Neurology , the study involved 222 people with essential tremor. The patients were asked to take tests of thinking and memory.
The study authors found that 27% of participants had mild cognitive impairment, nearly double the 14.5% rate in the general population.
In the study, 12% were diagnosed with dementia, a condition that was three times more common in people with tremors than in the general population.
Scientists note that the presence of essential tremor in patients does not necessarily mean the development of dementia later.
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