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In the journals

Eating a heart-healthy diet is associated with better dental health, according to a study in the Journal of the American Geriatrics Society. The Dietary Approaches to Stop Hypertension (DASH) diet was originally developed to lower blood pressure, but research has uncovered a variety of other possible health benefits.

In the new study, researchers with the Veterans Affairs Dental Longitudinal Study followed 533 men ages 47 to 90. The men had dental exams every three years over a 20-year period. A trained examiner checked the men for signs of root cavities, which can occur if the gums recede and expose the root surface. Root cavities lead to tooth loss, an outcome that most men understandably want to avoid.

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A landmark study indicates that lowering the top number to 120 mm Hg can reduce the risk of cardiovascular problems and death.

Medical practice usually evolves fairly slowly. Experts meet every five to 10 years to review study findings and make recommendations. But occasionally the results of a single study are so decisive that it is brought to a halt early, the results are announced, and doctors change their advice to patients based on the findings. For example, in 2002 the Women's Health Initiative was stopped three years early when postmenopausal women taking estrogen and progestin were found to be at higher risk of heart disease, stroke, and breast cancer than those who weren't on the hormones. The use of postmenopausal hormone therapy fell 70% in the next few years.

Formally published results of the SPRINT trial confirm the early conclusions released in September. A target systolic blood pressure (the top number) of 120 mm Hg or less offers real health benefits, including a lower risk for cardiovascular problems and even death. Even if you don’t have high blood pressure, the results are so compelling that everyone should know his or her blood pressure and develop a plan with a primary care physician to achieve and maintain the “ideal� blood pressure for them.

These potent medications are for hard-to-manage cases of high cholesterol—not replacements for the tried-and-true statins.

For optimal results, you need to take your medication regularly and time it correctly to your meals.

Have you tried to cool the burning discomfort of heartburn with medication and failed to get full relief? If so, a few simple adjustments to optimize your treatment may be all you need.

This simple activity is one of the best ways to protect your heart.

Ask the doctor

Q. I am scheduled for an electrical cardioversion for my atrial fibrillation. What should I expect?

A. Electrical cardioversion is a procedure to convert a fast or irregular heartbeat (such as what happens with atrial fibrillation, or afib) to a normal rhythm. Before the procedure, your cardiologist may recommend a special ultrasound test of your heart to check for blood clots. Cardioversion may dislodge any clots, which can be life-threatening. So if clots are found, the procedure may be delayed for a few weeks, so you can take blood-thinning medications to lower your risk of complications such as stroke.

Participation in a cardiac rehabilitation program following a heart attack helps people live longer and better.

Do you ever feel dizzy or faint when you stand up? Here's one common reason—and what to do about it.