11-Depression
Parkinson’s disease is a degenerative disease that affects your body functions and impairs your ability to perform day-to-day activities. Patients with advanced disease are at increased risk of depression, especially as their disability becomes more severe, and when they do not have coping strategies. Additionally, the brain in patients with Parkinson starts losing dopaminergic neurons, and they release a neurotransmitter called serotonin. Lacking serotonin leads to depression and further increases the risk of these patients to have mood problems.