According the American Heart Association, one in four U.S. adults have high blood pressure. It is called the "silent killer" behind many heart attacks and strokes. High blood pressure usually has no symptoms. It is important to monitor your blood pressure regularly.

Go ahead; take this quiz to see how much you know about blood pressure.

True or False

1. Hypertension in an adult is blood pressure greater than or equal to 140mm Hg (millimeters of mercury) for systolic pressure.

2. Hypertension in an adult is blood pressure greater than or equal to 100mm Hg for diastolic pressure.

3. The lower (diastolic pressure) number represents the pressure while the heart is beating.

4. The higher (systolic pressure) number represents the pressure when the heart is resting between beats.

5. The diastolic number is always stated first and the systolic number is listed second. For example: 120/80 (120 over 80) diastolic=120 systolic = 80.

6. Blood pressure less than 140/90 is considered a normal blood pressure reading for adults.

7. High blood pressure directly increases the risk of coronary heart disease and stroke, especially when combined with other risk factors such as obesity, being middle-aged or elderly, and heavy alcohol drinking.

8. Reducing salt consumption may help lower blood pressure in some people.

9. Physical inactivity is a risk factor for heart disease.

10. Regular exercise does not help to control weight and lower blood pressure.

11. There is usually no cure for hypertension and treatment generally must be carried out for life.

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