(It’s second toAlzheimer’s.)

This figure is expected to double by 2040, theNational Institute of Neurological Disorders and Strokereports.

This is related to the atrophy of certain systems within the brain.

Illustration of gut bacteria

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Relatives of those diagnosed with RBD showed similar differences from the norm.

The RBD and RBD relative cohorts were closest to the Parkinson’s disease populations' gut bacteria.

It’s too early to say whether that relationship exists.