... a million people in the U.S. have a heart attack. About half of them die. Many people have ... It's important to know the symptoms of a heart attack and call 9-1-1 if someone is ...
... over time. It's the major reason people have heart attacks. Prevention is important: two-thirds of women who have a heart attack fail to make a full recovery. The older ...
Heart disease is the leading cause of the death in the U.S. Over one quarter of all deaths are from heart disease. It is also a major cause of disability. ...
Air pollution is a mixture of solid particles and gases in the air. Car emissions,
chemicals from factories, dust, pollen and mold spores may be suspended ...