Parkinson's disease
Parkinson's disease is a progressive neurological disorder that primarily affects movement. It occurs when nerve cells in the brain, particularly in the substantia nigra area, become damaged or die. These cells produce dopamine, a chemical that helps regulate smooth and coordinated muscle movements. As dopamine levels drop, symptoms worsen over time. Symptoms Symptoms generally develop gradually and may include: Tremors : Shaking, usually beginning in the hands or fingers. Bradykinesia : Slowness of movement, making everyday tasks challenging. Muscle Rigidity : Stiffness in limbs or trunk, limiting range of motion. Impaired Posture & Balance : Difficulty maintaining stability. Speech Changes : Speaking softly, quickly, or with hesitation. Writing Changes : Handwriting may become smaller and difficult to read. Causes The exact cause is unknown, but factors may include: Genetic Mutations : Rare, but some gene variations can increase risk. Environmental Factors : Exposure to tox...
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