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Parkinson’s Disease: Tea, Soda, and Pesticides Impact Motor Skills Differently
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New findings published in npj Parkinson’s Disease reveal that specific lifestyle and environmental factors have varying effects on motor skill severity in Parkinson’s disease patients. The 2025 study pinpoints black tea consumption as potentially beneficial for one subtype, while pesticide exposure and caffeinated soda intake may worsen motor skills in another [1].
The Complex Landscape of Parkinson’s Disease
Parkinson’s disease, a progressive neurodegenerative disorder, affects approximately 12 million individuals globally. From 1990 to 2021,cases have surged by over 60%,underscoring the growing need for effective management strategies,as there is currently no cure [2].
While about 15% of Parkinson’s cases stem from single gene mutations, such as the LRRK2 G2019S variant, environmental and lifestyle factors also play a crucial role.Prior research indicates that individuals with LRRK2-related Parkinson’s disease (LRRK2-PD) often experience more pronounced motor challenges but fewer non-motor symptoms compared to those with idiopathic Parkinson’s disease (iPD).
Did You Know? Parkinson’s disease is typically diagnosed based on a neurologist’s review of medical history, symptoms, and neurological and physical examinations, as there isn’t a specific diagnostic test [3].
Study Design and Methodology
Researchers analyzed data from two extensive online cohorts,recruiting Parkinson’s disease patients who underwent routine online assessments of motor and non-motor symptoms. Participants also completed detailed questionnaires about their lifestyle habits and environmental exposures.