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Wear sunscreen, and avoid direct exposure to the sun.

Fatty plaque in the arteries that feed the kidneys poses a danger to the heart and brain.

Some research has suggested that older people who take blood pressure medications may be prone to falls, perhaps because the drugs make them dizzy or lightheaded when they stand up. But a new study in the May 2015 Hypertension found no increased risk of falls in people taking blood pressure drugs.

For the study, nearly 600 people with chronic high blood pressure reported their falls to researchers via mail-in postcards and phone calls. Almost half of the participants, whose average age was 78, reported one or more falls during the yearlong study. Neither standard nor high doses of blood pressure drugs were linked to falls. In fact, people who took two commonly prescribed types of blood pressure medications—ACE inhibitors and calcium-channel blockers—had a lower rate of falling compared with people not taking those drugs. Given the known benefits of treating high blood pressure in older people, the authors say, withholding blood pressure medication for fear of causing a fall may not make sense.

Serious health problems are uncommon after drugs or surgery to treat chronic heartburn, according to a recent study in Alimentary Pharmacology and Therapeutics. Many men take acid-reducing drugs called proton-pump inhibitors (PPIs), such as omeprazole (Prilosec, others) and lansoprazole (Prevacid), for chronic heartburn. One alternative is a surgical procedure to tighten the entrance to the stomach and prevent acidic stomach contents from backing up into the esophagus.

The new study drew on findings from two different clinical trials that tracked the health of people treated with either drugs or surgery. One trial involved about 300 people who were followed for up to 12 years; the other involved about 500 people who were followed for five years.

It appears that cognitive behavior therapy may help people with chronic insomnia and no underlying medical problems fall asleep faster.

When your back is bothering you and you don't want to take prescription drugs, over-the-counter solutions and physical therapies can help relieve symptoms.

High levels of these fatty particles in the blood means you may need to step up healthy lifestyle changes.

Early detection and proper use of eye drops are essential to preventing vision loss.

Glaucoma is a leading cause of irreversible blindness and is more common with aging. The condition affects peripheral vision at first, but eventually becomes more widespread. Treatment with daily eye drops helps to slow the process, but it's best to start early. "Glaucoma tends to be like a snowball," says Dr. Brian Song, a glaucoma specialist at Harvard-affiliated Massachusetts Eye and Ear Infirmary. "It's easier to control it early than if you wait for it to build momentum."

Q. I've been taking dabigatran (Pradaxa) for atrial fibrillation for a few years and haven't had any problems. But I've seen ads on television suggesting that this drug and others like it aren't safe. What's your advice?

A. Known as novel oral anticoagulants, these drugs make the blood less likely to clot, which helps prevent strokes. Others in the class include rivaroxaban (Xarelto), apixaban (Eliquis), and edoxaban (Savaysa). They work as well as the older anti-clotting drug warfarin (Coumadin) but don't require frequent testing for clotting function and are less likely to interact with food and other drugs.

By Anne Fabiny, M.D., Editor in Chief

Every so often, medical professional organizations issue new guidelines for treating diseases, based on an accumulation of new evidence. In 2013 the American College of Cardiology and American Heart Association issued a guideline on treating blood cholesterol to reduce atherosclerotic cardiovascular disease (ASCVD) risk, using a new risk calculator (online at ) to estimate a person's risk of developing ASCVD over the next 10 years. The guideline created a controversy because using the new risk calculator gives everyone over 75 a risk score of at least 7.5%—the threshold for prescribing statins to prevent heart disease in younger people. By that measure, everyone over the age of 75 should be on a statin!