Answer :
Oliver sacks pioneered treatment of patients with movement disorders, similar to Parkinson's, by using a drug that closely resembles the neurotransmitter dopamine.
Parkinson's is a progressive disease of the central nervous system. The symptoms may begin with light tremors that can lead to serious stiffness and disability to move. The cause of the disease is the loss of nerve cells. The disease can only be controlled with medication but not permanently treated.
Dopamine is a transmitter and a hormone that plays important role in functions like movement, memory and pleasurable reward and motivation. It is chemically of the catecholamine and phenethylamine families.
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