Down High blood pressure isn't like a toothache, a bruise, or constipation.
Nothing hurts, looks discolored, or fails to work.
Usually, people with high blood pressure experience no discomfort or outward signs of trouble. Directly or indirectly, high blood pressure accounts for nearly a million deaths a year. Uncontrolled, high blood pressure increases the odds that you'll have a heart attack, a stroke, or kidney failure. And many who have high blood pressure don't know it. And for 95 percent of those affected, there is no known cause.