In response to participants who asked for references in the thread dealing with stress and Parkinson's, here is the abstract of the first paper I was thinking about.
I did not find the second one for now (Two women patients that were cured from PD through "relieving the cause of their stress").
A potential case of remission of Parkinson’s disease
Abstract: We present the case of a 78-year-old male who, 16 years ago, was diagnosed with Parkinson’s disease (PD) by a neurologist. He initially presented with left- hand tremor, stooped posture, shuffling gait, and fre- quent falls, which eventually progressed to bilateral motor symptoms after 3 years. Since 2012, his symptoms and signs have almost completely remitted, and he has been off all pharmacotherapy for that time. The accuracy of the initial PD diagnosis is supported by an appropriate clinical presentation, history of positive response to Sinemet, and an abnormal SPECT DaT scan; thus this case suggests the possibility of remission of symptoms in some patients. We propose that the patient’s long history of meditation practice may have been one con- tributing factor of this improvement as meditation has been shown to release dopamine in the striatum.
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