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

VOA: special.2009.10.20

He was forty years old. Over the years,historians and medical experts have tried to explain the cause of Poe's death.

VOA: special.2009.02.02

A new study says the leading cause of disability in older people in low and middle income countries is dementia.

VOA: special.2009.12.28

The goal of the project is to examine in detail how tornadoes are formed and the kinds of damage they cause.

VOA: special.2010.05.11

It belongs to the same family of bacteria as those that cause tuberculosis and Hansen's disease, also known as leprosy.

VOA: special.2009.04.06

The World Health Organization says alcohol abuse is the third leading cause of death and disability in the world.

VOA: special.2011.03.08

The World Health Organization says mosquitoes carry organisms that cause disease and death for millions of people throughout the world.

VOA: special.2009.05.26

The Centers for Disease Control and Prevention says heart disease is the leading cause of death in the United States.

VOA: special.2010.06.08

Researchers for the RAND Corporation and the University of California at Los Angeles have said that few medical errors cause injury.

VOA: special.2010.07.13

Cardiovascular diseases of the heart and blood vessels are the number one cause of death around the world.

VOA: special.2009.04.08

Plate tectonics is the area of science that explains why the surface of the Earth changes and how those changes cause earthquakes.

VOA: special.2010.01.12

And any argument between us would not cause me to lose heart or feel a sense of loss.

VOA: special.2010.07.11

"I offer Catholic Mass,' cause I'm a Catholic priest by profession,and so it is actually the feast day of Mary,Mother of God.

VOA: special.2009.12.28

The agency says rape and domestic violence are a major cause of disability and death among women ages fifteen to forty four.

VOA: special.2010.03.08