Controlling Your Blood Pressure Archive

Reduce your dependence on medications with these strategies.

More than a third of all adults in the United States have high blood pressure—a systolic pressure (the top number in a reading) of at least 140 millimeters of mercury (mm Hg), or a diastolic pressure (the bottom number) of at least 90 mm Hg, or both. The condition injures blood vessel walls and forces the heart to work harder, increasing the risk for heart disease and stroke.

Taking medication to treat high blood pressure is just part of the solution.

New research has linked heart tissue damage to blood pressure treatments that drive diastolic pressure (the bottom number in a reading) too low. 

Millions of older adults aren’t taking their blood pressure drugs as directed. Ways to combat adherence problems include asking a doctor for less expensive drugs, understanding what a medication is for, and reporting side effects. 

New findings focus on diastolic blood pressure—the second number in your blood pressure reading.

 Image: mangostock/Thinkstock

Of the two numbers that make up your blood pressure reading, the first one (systolic blood pressure) typically gets more attention. That's because as people age, their arteries lose their elasticity, and the inner walls are more likely to accumulate cholesterol-laden plaque. These factors tend to raise systolic blood pressure, a measure of the pressure inside the arteries when the heart contracts to pump blood throughout the body.

Current guidelines suggest that most people should aim for a systolic blood pressure reading of 140 millimeters of mercury (mm Hg) or lower. But last year, a widely publicized clinical trial suggested that a target of 120 mm Hg could further reduce the dangers associated with high blood pressure (namely, heart attack, stroke, heart failure, and death).

The discovery of 44 gene sites associated with high blood pressure may provide leads for developing new drugs to treat this common condition. 

DASH diet effective but not the only way to reduce sodium

Your body needs a little bit of salt every day for the sodium it contains. But too much sodium can boost blood pressure and stress the heart and blood vessels. The low-sodium Dietary Approaches to Stop Hypertension (DASH) diet is high in fruits, vegetables, and whole grains; moderately high in nuts and low-fat dairy products; and low in red and processed meats. Following it can lower blood pressure and reduce the risk of heart disease and stroke.

The DASH diet is a good way to eat healthy. But there's no need to follow that specific diet to get measurable results. If you want to tackle cutting back on sodium, try these six tips:

An app that detects an irregular heart rhythm could be reassuring for people worried about afib.

 Image: Prykhodov /Thinkstock

Just over two years ago, the FDA approved the AliveCor Heart Monitor, which consists of a smartphone app plus a phone case with special sensors on the back. Touching the sensors with your fingers allows you to see a simple version of your heart's electrical activity on the phone screen. In the latest version, called Kardia, the sensors just need to be near (not necessarily on) your phone. The readout reveals if your heart rhythm looks normal or if you appear to have atrial fibrillation (afib)—a rapid, irregular heart rhythm that raises the risk of stroke.

Currently, several new smartphone apps to alert you about possible afib using just the phone itself—no special case required—are under development. Recent research suggests they're about as accurate as the Kardia system, although they haven't yet been cleared by the FDA and aren't on the market. If and when they are, could these apps help improve afib screening?

Venous insufficiency, which happens when veins don’t work properly, can cause swelling, pain, and a sense of heaviness in the legs. Elevating the legs when sitting or lying down can help; so can support stockings. 

About 66% of adults over age 70 still take antihypertensive medication even though they now have low pressures, says a study from the University of Kent in the United Kingdom. Researchers say this exposes adults to medication side effects like dizziness and falls. 

Home sleep tests to diagnose obstructive sleep apnea (OSA) may reliably detect the disorder even if a sleep specialist is not involved. Marked by loud snoring and breathing lapses during sleep, OSA can increase the risk of cardiovascular disease.