Parkinson’s Disease Is More Than Dopamine: The Metabolic & Mitochondrial Connection (2026)
Introduction Parkinson’s disease is often described as a condition caused by low dopamine. While this is technically correct, it is also incomplete. Emerging research suggests that Parkinson’s is not just a neurotransmitter deficiency—but a complex metabolic and neurodegenerative disorder involving mitochondrial dysfunction, insulin resistance, and chronic inflammation. Understanding this broader picture opens the door to new prevention and treatment strategies that go beyond dopamine replacement. What Happens in Parkinson’s Disease? Parkinson’s disease occurs when dopamine-producing neurons in the substantia nigra progressively die. This leads to: Tremors Muscle rigidity Slowed movement (bradykinesia) Balance and coordination issues Dopamine plays a central role in regulating movement, but its depletion is only the final step in a much larger disease process. Why Dopamine Alone Is Not the Full Story Traditional treatment focuses on replacing dopamine (e.g., levodopa). While effecti...