Parkinson’s disease is a chronic, progressive neurological disorder that mainly affects movement. It occurs when nerve cells in a part of the brain called the substantia nigra are damaged or die, leading to a decrease in dopamine—a chemical that helps control smooth and coordinated muscle movements.
🔹 Common Symptoms T
remor (shaking), usually starting in one hand Bradykinesia (slowness of movement) Muscle rigidity (stiffness) Postural instability (balance problems) Reduced facial expression (“masked face”) Soft or slow speech
🔹 Non-Motor Symptoms
Depression and anxiety Sleep disturbances Constipation Loss of smell Memory and thinking problems (in later stages)
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