Last updated: Apr 02, 2008
About 65 million American adultsnearly one in threehave high blood pressure. In the United States, high blood pressure occurs more often in African Americans than in Caucasians.
- Tend to get high blood pressure earlier in life
- Usually have more severe high blood pressure
- Have a higher death rate from stroke, heart disease, and kidney failure
- Are overweight
- Are a man over the age of 45
- Are a woman over the age of 55
- Have a family history of high blood pressure
- Have prehypertension (that is, blood pressure in the 120–139/80–89 mmHg range)
- Eating too much salt
- Drinking too much alcohol
- Not getting enough potassium in your diet
- Not doing enough physical activity
- Taking certain medicines
- Having long-lasting stress
- Smoking (smoking can cause a temporary rise in blood pressure)
High blood pressure is called the silent killer because you can have it for years without knowing it. The only way to find out if you have high blood pressure is to have your blood pressure measured. Using a blood pressure cuff and stethoscope or electronic sensor, your doctor or nurse can take your blood pressure and tell you if it is high.
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Only your doctor can tell you whether you have high blood pressure. Most doctors will check your blood pressure several times on different days before deciding that you have high blood pressure. A diagnosis of high blood pressure is given if repeated readings are 140/90 mmHg or higher, or 130/80 mmHg or higher if you have diabetes or chronic kidney disease.