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But use is primarily a concern for people who take them over a long period or who have certain health risks.

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Numerous studies in recent years have raised concerns that common pain relievers known as nonsteroidal anti-inflammatory drugs (NSAIDs) increase the risk of cardiovascular problems, such as heart attack and stroke.

A study published September 4 in The BMJ seems to confirm the risks associated with NSAIDs and notes that one medication in particular 鈥� diclofenac (Voltaren) 鈥� is associated with even higher risks to cardiovascular health than others in the same category.

Research we're watching

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Taking a low-dose aspirin every day could bring more risks than health benefits to healthy older adults, according to three papers from a single study, published online September 16 by The New England Journal of Medicine. The study, which began in 2010, included more than 19,000 adults ages 65 and older in the United States and Australia, who were free of cardiovascular disease, dementia, or disability, and followed participants for 4.7 years on average. Researchers found that treatment with a daily low-dose aspirin did not prevent dementia or disability. And rates of cardiovascular events (such as heart attacks and stroke) were similar between participants who took low-dose aspirin therapy and the comparison group that did not. While health outcomes were largely the same, people in the aspirin group were more likely than those who were not taking daily aspirin to experience significant bleeding, both in the gastrointestinal tract and the brain 鈥� a known risk of aspirin therapy.

While low-dose aspirin does not appear to benefit healthy older adults, this does not apply to people with known cardiovascular disease. For them, aspirin therapy significantly decreases risk of heart attack and stroke.

Ask the doctor

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Q. Is there something stronger than aspirin I can take for peripheral artery disease in my legs?

A. People with peripheral artery disease (PAD) in the legs have blockages (plaques of atherosclerosis) in the arteries that impair the flow of blood. Based on large scientific studies involving over 5,000 people with PAD, authorities recommend taking a daily aspirin tablet. For people with PAD, smoking cessation, regular exercise, and often other medicines such as statins, can help prevent further plaque buildup and decrease symptoms.

You have many alternatives for treating and controlling pain.

The opioid epidemic continues to rise in America, and a 2017 report from the National Initiative for the Care of the Elderly suggests the crisis now affects more older adults.

A main reason for the growing addiction to pain medicine is the ease with which it is often prescribed, according to Dr. Robert Jamison, a professor of anesthesia and psychiatry with Harvard-affiliated Brigham and Women's Hospital.

Although many older men enjoy active sex lives, most don't share sex-related questions and concerns with their doctor.

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While you discuss many subjects with your doctor, like proper blood pressure and cholesterol levels, your sex life probably doesn't make the list 鈥� but it should.

"Even though you may have an aging body, you can still feel healthy, vigorous, and full of life, and your sex life should be part of that," says Dr. Sharon Bober, director of the Sexual Health Program at Harvard-affiliated Dana-Farber Cancer Institute.

There are ways to shorten flare-ups and, in some people, prevent them from recurring.

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Psoriasis is a big star on TV drug ads, but this autoimmune skin disease is something most people try to keep well hidden.

"Psoriasis is among the most common skin conditions, affecting about 2% of the U.S. population, and while the condition doesn't affect everyone the same way, the approach to treatment and prevention is often similar," says Dr. Gideon Smith, an assistant professor of dermatology at Harvard-affiliated Massachusetts General Hospital.

Healthy older adults ages 75 and older might not benefit from the drugs to protect against cardiovascular disease.

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Cardiovascular disease is the leading cause of death for people ages 75 and over. The cholesterol-lowering statin drugs can help protect against heart attack or stroke, both for people who have already had one and those who are at high risk for one of these events.

But what if you are in this older age bracket and have no history of cardiovascular problems? Do you really need one of these cholesterol-lowering drugs to protect yourself from future heart attacks and strokes?

In the journals

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Low-dose aspirin therapy has been shown to help prevent heart attacks, but a study in the Aug. 4, 2018 issue of The Lancet suggests men who weigh more than 154 pounds may need higher doses. Researchers analyzed 10 trials that evaluated daily aspirin therapy for cardiovascular disease prevention in 120,000 men and women. The study participants had no history of heart or vascular disease. The researchers found that low-dose daily aspirin 鈥� 75 to 100 mg 鈥� was associated with reduced risk for heart attack and stroke among both men and women who weighed less than 154 pounds.

However, there was no significant effect for heavier patients. (About 80% of the men in the study were among this group.) The reason? The researchers speculated that people with more weight also have higher amounts of esterase, an enzyme that reduces how much aspirin is available in the body.

Ketamine offers a new option for people with stubborn depression that doesn't respond to other medications.

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Many people know of ketamine as a hallucinogenic and addictive street drug, which, when abused, can put people in medical peril. But today, doctors are increasingly looking to ketamine as a potentially lifesaving treatment for people with severe, treatment-resistant depression, who may be at high risk for suicide.

"Ketamine has been shown to be effective in people who have not responded to antidepressant treatment," says Dr. Cristina Cusin, an assistant professor of psychiatry at Harvard Medical School. The fast-acting treatment has shown promise 鈥� sometimes improving depressive symptoms within hours of the first intravenous treatment.

News briefs

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Urgent care clinics are convenient when you don't feel well and can't see your doctor right away. But a study published online July 16, 2018, by JAMA Internal Medicine found that people who go to such clinics may be more likely to be given prescriptions for unnecessary antibiotics. Researchers analyzed 156 million insurance claims from 2014 and found that 46% of people treated at urgent care centers for viral conditions 鈥� like a bad cold, the flu, or viral bronchitis 鈥� were prescribed antibiotics. The problem: antibiotics kill only bacteria, not viruses. The study underscores the need to ask health care workers if you have a viral or a bacterial condition before you take antibiotics.