USA HISTORY

Detailed explanation-1: -Parkinson disease (PD) is a degenerative condition of the brain associated with motor symptoms (slow movement, tremor, rigidity, walking and imbalance) and a wide variety of non-motor complications (cognitive impairment, mental health disorders, sleep disorders and pain and other sensory disturbances).

Detailed explanation-2: -Parkinson’s disease is a brain disorder that causes unintended or uncontrollable movements, such as shaking, stiffness, and difficulty with balance and coordination. Symptoms usually begin gradually and worsen over time. As the disease progresses, people may have difficulty walking and talking.

Detailed explanation-3: -Parkinson’s disease is caused by a loss of nerve cells in the part of the brain called the substantia nigra. Nerve cells in this part of the brain are responsible for producing a chemical called dopamine.

Detailed explanation-4: -One of the most prevalent neurodegenerative diseases worldwide is still referred to as ‘Parkinson’s disease’. The condition is named after James Parkinson who, in 1817, described the shaking palsy (paralysis agitans).

Detailed explanation-5: -Parkinson’s disease is a progressive disorder that is caused by degeneration of nerve cells in the part of the brain called the substantia nigra, which controls movement. These nerve cells die or become impaired, losing the ability to produce an important chemical called dopamine.