The concept of a "no arousal" diet is very interesting, especially in the context of a larger view of PD as a struggle to maintain an equilibrium or balance in a stressed system. Homeostasis is another term for it. Extremes are to be avoided. Sort of the "Goldilocks Syndrome." Not too hot nor too cold. It is found at various levels in me (us?). Cortisol levels, for example, normally rise to a peak around sunup and then drop rapidly through the morning and begin a slow ascent in the evening to eventually repeat the cycle. But not with PWP. We tend to hover around an elevated flat line. No extremes.

Emergency? PWP seem to keep their heads more than most. Need it done and done right? You could do worse than a PWP. The Parkie Personality is real. No extremes.

But that stability comes with a cost and gets harder and harder to maintain. Stressed out system collapse.

Joop may be onto something here.