Awareness of the dreaming state (while maintaining sleep paralysis), aka lucid dreaming, is not the same as physically acting out your dream (losing sleep paralysis).

I'm not an expert on the etiology nor the mitigation, nor really any part of these diseases. I simply heard that statistic recently, did some research to validate what I had heard, and then posted because I found it so wild that these sleep behavioral symptoms were indicative of future pathologies.

It's not a given, but there is a genetic component of this stuff. You may do well to research synucleinopathies, and learn how you can avoid or postpone those types of outcomes via changes in habits, diet, and environment.

I've actually seen his one-man show in New york, and I do remember a part about sleepwalking and physically acting out dreams (in Walla Walla).

Seriously, if you act out your dreams, you should talk to a doctor pronto.

This isn't something that's typically screened for in, say, annual physicals, but should be.

Correct. This risk factor relates to physically acting out your dreams.

Edit: if you read the headline and you're like "oh, ffffuuuu", please read /u/onewobblywheel 's insightful comment about how some combination of diet, habit, or environment could move the needle for you to at least postpone and potentially halt disease progression. Whether or not that person's strategies apply to you, is immaterial. The point is is that not every future is chiseled in stone, and if this applies to you, early stage therapies and modifications may be worth pursuing.

It means if you act out your dreams, meaning if you physically move around as if your dream were real life: you should probably talk to a specialist about mitigating the high likelihood of future diseases related to specific brain pathologies.

Edit. All of these disorders are synucleinopathies, either caused by or related to the over accumulation of the alpha-synuclein protein in neuronal synapses. One early presentation of this diverse group of brain-based Illnesses is REM Brain Disorder, in which the patient is able to break through the typical paralysis that the dreaming body experiences. This allows the non paralyzed sleeper to act out their dreams physically, and often violently.

Retrospective analysis has discovered that at least four-in-five, and potentially up to 98%, of people who experience physical dreaming eventually develop parkinson's, als, lewy body dementia, or other brain based illness.