What is the typical age range of onset for symptoms of Parkinson's disease?

The typical age range for the onset of symptoms of Parkinson's disease is indeed between 45 and 65 years. This neurodegenerative disorder primarily affects older adults, with most cases diagnosed in individuals who are middle-aged or older. Although there are instances of early-onset Parkinson’s disease occurring in people under 40, these cases are relatively rare compared to the majority of diagnoses that occur later in life.

Understanding the typical age range helps in recognizing the potential presence of the disease and can guide healthcare professionals in making accurate assessments and recommendations for management. The other age ranges mentioned are not consistent with the epidemiology of Parkinson's disease, as symptoms rarely begin in adolescence or early adulthood, and onset is less common in those over 65.