Dopamine is in charge of the pleasure. This means food, sex, and several drugs of abuse are also stimulants of dopamine, particularly in areas such as the nucleus accumbens and prefrontal cortex.
As symptoms get worse, people with the disease may have trouble walking, talking, or doing simple tasks. They may also have problems such as depression, sleep problems, or trouble chewing, swallowing, or speaking.
PD usually begins around age 60, but it can start earlier. It is more common in men than in women. There is no cure for PD. A variety of medicines sometimes help symptoms dramatically. The most effective treatment is the L-Dopa
Surgery and deep brain stimulation (DBS) can help severe cases. With DBS, electrodes are surgically implanted in the brain. They send electrical pulses to stimulate the parts of the brain that control movement.