SUZANNE GRALA / SCIENCE PHOTO LIBRARY SUZANNE GRALA / SCIENCE PHOTO LIBRARY
Blood pressure measurement. General practice (GP) doctor using a cuff (blue) and stethoscope to take a patient's blood pressure. The cuff is connected to a gauge (sphygmomanometer, upper right) that displays the pressure. Blood pressure is an important measure of health. High blood pressure (hypertension) puts a great deal of strain on the heart, and is one of the major risk factors in heart attacks and strokes.
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