In the United States alone, more than five million people are said to suffer from this slowly increasing brain disorder.

VOA: special.2009.09.15

The researcher said that before the body begins to freeze, cold can cause changes in brain chemistry which lead to hallucinations.

VOA: special.2010.02.24

Studies have shown that activation of the trigeminal nerve may come from a part of the brain called the hypothalamus.

VOA: special.2011.05.03

"We looked at a very high resolution picture of the brain, where we can actually measure what's called cortical thickness.

VOA: special.2011.07.29

For example, a person who speaks and reads fifteen languages, or a medical doctor who operates on the brain.

VOA: special.2010.06.27

Clots can block the flow of blood to the heart or brain and cause a heart attack or stroke.

VOA: special.2009.10.20

They showed that patients who received deep brain stimulation had better control of their symptoms than those who only took medicine.

VOA: special.2009.02.03

There is a risk that giving a patient a strong blood thinner during a stroke can cause bleeding inside the brain.

VOA: special.2009.09.22

But the wiring,the cables between the points in the brain, one to another, may be disrupted in some way."

VOA: special.2010.12.21

When it reaches the brain, levodopa is changed into dopamine, the chemical that is lacking in people with the disease.

VOA: special.2009.04.07

Nothing happened when they turned on the light in cells in an area of the brain called the subthalamic nucleus.

VOA: special.2009.04.07

The brain also needs a "cognitive rest," they say, by restricting activities like video games, texting and watching TV.

VOA: special.2009.10.28

Their central nervous system may tell the brain that there is pain even when there is no cause for the pain.

VOA: special.2011.07.26

The Cleveland Clinic says the cause of cluster headaches is in a brain area known as a trigeminal-autonomic reflex pathway.

VOA: special.2010.03.30