To withstand that pressure, healthy arteries need to be flexible. Your heart is a powerful muscle that pumps blood through your arteries. Black Americans are more likely than Caucasians and Hispanic Americans to develop high blood pressure. About 65 percent of people 60 and older have high blood pressure. But several factors are known to increase the risk, including: Anyone can develop it, even if they are thin, healthy, and exercise regularly. In most cases, the cause of high blood pressure is unknown. When they don't, low-cost medicines can help. In some cases, a committment to making lifestyle changes-such as eating a healthful diet, losing weight, reducing salt intake, and getting regular exercise-can lower blood pressure enough so that medication may not be needed. Studies show that about half of people treated for high blood pressure don't get it under control. That's unfortunate-and unnecessary. If you have high blood pressure, stick with your treatment. Be sure to get yours checked at every doctor appointment. Doctors, too, don't always check blood pressure. That's partly because the condition usually doesn’t cause any obvious symptoms, and because some people don’t get medical checkups as often as they should. High blood pressure is one of the leading causes of heart attacks and strokes, yet one in five of the about 80 million Americans with high blood pressure don't know they have it.
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