AN alarming one in three adults has high blood pressure, reports the Harvard Health Beat newsletter. Known medically as hypertension, many people don’t even know they have it because it has no symptoms or warning signs. But when elevated blood pressure is accompanied by abnormal cholesterol and blood sugar levels, the damage to your arteries, kidneys, and heart accelerates. Fortunately, high blood pressure is easy to detect and treat. Sometimes people can keep blood pressure in a healthy range simply by making lifestyle changes, such as losing weight, increasing activity and eating more healthfully. While it silently damages blood vessels, the heart and other organs, it isn’t a disease but a sign that something is wrong in the body. In some people, the culprit is a narrow- ing of the arteries supplying the kidneys, an overactive thyroid gland or adrenal glands. When these are treated, blood pressure drops. More often, though, doctors