
Exercise and Parkinson's disease
Parkinson’s disease is a neurodegenerative disorder characterized by loss of dopamine neurons in the substantia nigra pars compacta, a part of the brain’s basal ganglia system. The symptoms of this disease are motoric in nature and include tremor, or a shaking of the extremities; rigidity or stiffness of the body; bradykinesia or slow movements; and instability in posture, balance and coordination. Later symptoms include cognitive impairments similar to dementia as well as