Scientists are still learning about the risk factors for LBD. The most significant risk factor is age. Most people who develop LBD are over age 50, and it is more common in men. Some health conditions seemed to be linked to a higher risk of developing LBD, including loss of smell and REM sleep behavior disorder.
Having a family member with LBD may be a risk factor, but scientists do not consider it a hereditary disease, and there is no genetic testing available to determine whether someone will get LBD.

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