Diseases & Conditions Archive

News briefs

About half of all people in the United States living with a diagnosis of HIV (human immunodeficiency virus) are age 50 or older. But new data from the CDC suggest most Americans have never been tested for the virus (which causes AIDS, the late-stage phase of HIV infection). According to the June 28, 2019, Morbidity and Mortality Weekly Report, less than 40% of people in the United States have had an HIV test, even though the CDC recommends routine testing at least once for everyone age 13 to 64. The CDC notes that older adults sometimes aren't tested for HIV because they don't consider themselves at risk for infection or because their health care providers don't offer them the test. Older people may also mistake late-stage HIV symptoms, such as weight loss and frequent illness, for signs of normal aging. Those symptoms occur because HIV attacks the body's immune system. But a delay in diagnosis allows the virus to cause more damage. That's unfortunate, since medications can keep the infection from progressing.

If you haven't had an HIV test, talk to your doctor about whether it's right for you, no matter your age, especially if you are sexually active or have had more than one sex partner.

Ask the doctors

Q. My doctor recently told me I have prediabetes. Is this condition reversible?

A. Yes, it is possible to reverse prediabetes. Prediabetes is a condition that affects millions of Americans. The CDC estimates that as many as one in every three American adults has the condition, which is defined as having blood sugar that is elevated, but not high enough to meet the threshold for diabetes. Left untreated, prediabetes can progress to diabetes, a condition in which your body is not able to absorb glucose for energy properly, causing blood sugar to rise. If it's not managed properly, diabetes can lead to a number of health problems, from heart attack and stroke to blindness, kidney problems, and infections, among others. But making some lifestyle changes can reduce the risk that your prediabetes will develop into diabetes.

PrEP (pre-exposure prophylaxis) is a daily medication taken to prevent HIV infection. While multiple studies show PrEP is effective, relatively few of those who might benefit are taking it. Will a 10-year initiative to reduce rates of HIV and a new formulation of PrEP help?

Ask the doctors

Q. I've had endometriosis since I was in my 30s. I'm now approaching menopause. Will my symptoms get better or even go away after menopause?

A. Possibly, but not always. Endometriosis is a condition in which tissue that resembles the tissue that lines the uterus, called endometrial tissue, grows in other locations inside the body. Typically, it grows on structures and organs in the pelvis, such as the ovaries, fallopian tubes, bladder, or bowels. When a woman menstruates, this tissue behaves like the lining of the uterus and bleeds. But because this blood has no way to exit the body, it pools inside. This leads to pain, inflammation, and scarring.

Bacteria and mold can accumulate in various parts of the device. But regular equipment cleaning reduces risks.

Continuous positive airway pressure (CPAP) can be hard to get used to. The mask may feel bulky, or it may feel strange to have air blowing in as you try to breathe. That keeps many people from using a treatment that may, in fact, be a lifesaver (see "What is CPAP?").

People also can be put off because they've heard that a dirty CPAP machine can make you sick. Is that true? "Yes, if you don't clean the machine regularly," says Dr. Lawrence Epstein, a sleep expert at Harvard-affiliated Brigham and Women's Hospital.

Doctors say three recently approved migraine prevention drugs are helping people have fewer headaches.

For people with frequent, debilitating migraine headaches, 2018 brought encouraging news. The FDA approved three new medications — erenumab (Aimovig), fremanezumab (Ajovy), and galcanezumab (Emgality) — the first drugs designed specifically to prevent migraines and reduce their frequency, intensity, and duration.

It was a big development, since other medications used to stop migraines were created to control other conditions, such as seizures, depression, high blood pressure, or an irregular heartbeat. But their side effects (such as weight gain, dizziness, or fuzzy thinking) often cause people to skip treatment.

Research we're watching

Can emotional stress harm your bones? A new study found an association between stressful social relationships and bone problems in women. The study, which was published online July 9 by the Journal of Epidemiology & Community Health, found that women who reported high levels of social stress had lower bone density six years later. The study looked at more than 11,000 postmenopausal women. At the time of enrollment, the women filled out a questionnaire that asked them to rate their social stress levels and had their bone density measured both at enrollment and six years later at a follow-up appointment. Women who had reported high levels of stress at the initial interview showed a bigger decline in bone density at the follow-up compared with women who'd initially reported lower stress levels. This was true even after the researchers adjusted for other factors that may affect bone health, such as age, weight, smoking, alcohol use, and education, among others. The authors speculated that stress may harm bone health because stress leads to higher blood cortisol levels, a well-established reason for lower bone density. Further study is needed to understand and confirm the results.

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