Parkinson's disease (PD) is a neurodegenerative disorder that affects predominately dopaminergic neurons in a specific area of the brain called substantia nigra. While Parkinson’s itself is not fatal, disease complications can be serious. The Centers for Disease Control and Prevention (CDC) rated complications from PD as the 14th cause of death in the United States.
Currently, all therapies used for PD improve symptoms without slowing or halting the disease progression.
So at present what is the life expectancy of a Parkinson's patient?