Skip to main content

Posts

Showing posts with the label Annals of internal medicine

High blood pressure: who actually has it?

Hypertension is defined as the abnormal elevation of the pressure of blood within the arteries as measured most often by a blood pressure cuff.  About 1 in 3 Americans has hypertension (which is the same thing as high blood pressure and has almost nothing to do with stress or anxiety.) When I finished medical school about 25 years ago, hypertension was diagnosed in an adult when the blood pressure was above 140/90 mm of mercury. In the last several years, since mortality pretty much just increases with increasing blood pressure, lower levels of blood pressure have been identified as being abnormal. Now a person has prehypertension if their systolic (top number) blood pressure is between 120 and 139 or if their diastolic (bottom number) blood pressure is between 80 and 89. High blood pressure is a big deal because it increases a person's risk for stroke, heart attack and kidney failure. It is also mostly completely silent, causing no discomfort except at very high levels. The only...