Parkinson's disease is a degeneration of the nervous system, which therefore needs to be stimulated. Plants containing dopamine should be used, such as ginkgo biloba, widely used in the past by the Arabs, or also passionflower and Armaline. These remedies can be found in capsule form. In addition, there are mushrooms, such as truffle, which the Prophet ﷺ used often, or also "lion's mane." The patient should also make sure to eat fruit, which is rich in antioxidants, and also follow physical therapy sessions.
What the science says: the nerves and nervous system
What the published research says about the remedies mentioned above, for context — these studies concern material causes; healing belongs to Allah.
The nerves and nervous system
Adapted physical exercise improves mobility and reduces falls in Parkinson's disease according to a Cochrane review (Cochrane, 2023) (Neurorehabil Neural Repair, 2020); vitamin D is being studied in multiple sclerosis (J Nutr, 2024) and the ketogenic diet in certain drug-resistant forms of epilepsy (Dev Med Child Neurol, 2020). Omega-3s, B vitamins, magnesium, and sleep support the nervous system. Precaution: these conditions are followed in neurology; natural remedies accompany treatment, never replace it.