An increased risk was seen across both natural and unnatural causes of death but was especially large for suicide.
From 1997 to 2020, the team identified over 4,000 cases of the disorder.
The authors note that most of the deaths seen in the study would be considered preventable.
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And there are potential treatments available for hypochondriasis, such as cognitive behavioral therapy or antidepressant medication.
Dismissing these individuals somatic symptoms as imaginary may have dire consequences, they wrote.
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