Understanding Parkinson's disease

We rely on our brains for every movement we make, whether writing, walking, talking or even sleeping.

But a serious brain disorder like Parkinsons disease can rob a person of the ability to do everyday tasks that many of us take for granted.

Theres no cure, but treatment can help. And researchers continue to seek new understanding to improve medical care.

Parkinsons disease evolves gradually over time. The early signs may be barely noticeable. A persons movements may change slightly. You might notice slowness, rigidity or difficulty balancing or walking. The persons face may lack expression or handwriting may become small and cramped.

Eventually, these changes can become more severe and interfere with daily life. It might become harder to sleep, think, eat, speak, smell and make decisions. As the disease worsens, symptoms may become difficult to control.

Parkinsons disease usually arises after age 50, but can also appear earlier in life. It affects about 600,000 people nationwide. As Americans age, the number of people with Parkinsons disease is expected to rise dramatically.

Parkinsons disease is a neurodegenerative disorder, which means that brain cells gradually malfunction and die. The disease damages brain cells that make a chemical called dopamine. The resulting dopamine shortage causes the movement problems that mark Parkinsons disease.

Although researchers dont yet understand what causes Parkinsons disease, the bodys genes likely play some role. A number of genes have been linked to the risk of developing Parkinsons.

But genes are only part of the picture. Scientists are searching for other factors that might lead to the disease. One goal of this research is to discover new targets for drugs that can slow disease progression.

If you notice any of the common signs of Parkinsons disease, see a health care provider. Your doctor may refer you to a neurologist, a physician specializing in the nervous system. A careful exam and certain tests can help with diagnosis.

Go here to read the rest:
Understanding Parkinson's disease