Understanding Parkinson's Disease: Survival Expectations and Disease Progression

Stage one includes mild symptoms like slight tremors and posture changes, with normal life expectancy. The disease remains manageable with medication, and symptoms are often unnoticed. Stage two shows more evident tremors on both sides, walking issues, and stiffness, but patients typically maintain independence. Stage three marks a decline in balance, with symptoms becoming more disruptive; reactions slow, and falls become common. Medication and therapy help manage symptoms during this stage. In stage four, independence decreases further; patients require mobility aids and assistance. Stage five is the most severe, with significant motor impairment, hallucinations, and dependence on round-the-clock care. Even with progression, the disease is not directly fatal, though complications like falls and pneumonia can threaten life. Nonmotor symptoms such as fatigue, depression, and cognitive decline also impact patients’ wellbeing.