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(HealthNewsDigest.com) – Boston, MA – For most people, a visit to a health care provider typically starts with a gentle squeeze-the sensation of a blood pressure cuff inflating around their upper arm. But a single blood pressure reading offers only a glimpse into the health of that person’s cardiovascular system, according to the March 2016 Harvard Heart Letter.
“When you have your blood pressure checked in the doctor’s office, you’re in an artificial environment that is not reflective of the vast majority of the time when your blood pressure is going through its daily excursions,” says cardiologist Dr. Elliott Antman, professor of medicine at Harvard Medical School. Throughout the course of a day, the average person’s systolic blood pressure (the first number in the reading) may fluctuate considerably.
Some people get very anxious in medical settings, which can cause their blood pressure to rise-a phenomenon known as white-coat hypertension. Others may feel like they’re in a protected, safe place where they can sit back and relax, which may cause their blood pressure to be lower than normal. If their blood pressure is high at other times, however, they may have a condition called masked hypertension.
The U.S. Preventive Services Task Force, a federally sponsored group that draws up medical guidelines, recommends that people measure their blood pressure outside of the medical setting to confirm a diagnosis of high blood pressure before starting treatment.
One good option is to use a home blood pressure monitor, and recent technological advances have made the process a lot simpler, says Dr. Antman. Many digital home blood pressure monitors include a cord that plugs into a smartphone. And two companies, Withings and iHealth, have FDA-approved blood pressure devices that can send readings to a smartphone wirelessly.
Current guidelines suggest that most people aim for a reading of 140/90 millimeters of mercury (mm Hg) or lower. But recent findings suggest that an even lower target (a systolic reading of less than 120 mm Hg) may prevent more cardiovascular complications and deaths.
Read the full-length article: “How to determine–and achieve–a target blood pressure“
Also in the March 2016 issue of the Harvard Heart Letter:
- How much exercise is optimal for heart health?
- Keeping the heart in the right rhythm
- Omega-3 fatty acids in the diet
The Harvard Heart Letter is available from Harvard Health Publications, the publishing division of Harvard Medical School, for $20 per year. Subscribe at www.health.harvard.edu/heart or by calling 877-649-9457 (toll-free).
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