Parkinson’s disease cases expected to double worldwide by 2050

Parkinson’s disease cases are projected to double globally by 2050, reaching 25 million individuals, according to a recent modeling study published in BMJ. Population aging (increasing median age) emerged as a primary driver of this increase, followed by population growth (rising total number of people), with the largest increases expected in East Asia and among people aged 80 and older.
March 8, 2025