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Barter requires a double coincidence of wants.This means that:
Deep Brain Stimulation
A neurosurgical procedure that implants a device to send electrical impulses to targeted areas in the brain, used to treat some neurodegenerative disorders.
Obsessive-Compulsive Disorder
A mental disorder characterized by unwanted repetitive thoughts (obsessions) and actions (compulsions).
Depression
A common and serious mental health condition characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities.
Parkinson Disease
A degenerative disorder of the central nervous system mainly affecting motor function, caused by dopamine-producing neuron loss in the brain.
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