Parkinson's Disease

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What is Parkinson's Disease

Parkinson's disease is a brain disorder that gets worse over time. It causes nerve cells in a part of the brain called the substantia nigra to die. This part of the brain is important for controlling movement. That's why people with Parkinson's often shake or show other abnormal movements. Treatments can help with symptoms, but there is no way to slow or reverse the condition.

What Causes It?

No one knows exactly why a person gets Parkinson's. It's probably due to a mix of things, including genes and exposure to certain toxins. There's usually no way to predict who will get it or why. It's rare for Parkinson's to run in families. Most of the time, it seems to happen randomly.

Who Gets Parkinson's?

Both men and women get Parkinson's disease. It's 1.5 times more common in men. It's also more common in older people. Only about 4 out of every 100 cases happen in people under age 50. Each year, about 60,000 people in the U.S. find out they have Parkinson's. About 1 million people in the U.S. and 10 million around the world have this condition.

Symptoms
The four main symptoms of Parkinson's are related to movement: