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Research we're watching

American adults are gaining weight, according to data from the CDC. Twelve U.S. states now have obesity rates of 35% or higher, compared with just six states in 2017 and nine states in 2018. Experts say the trend is particularly concerning because adults with obesity are more prone to severe outcomes from COVID-19.

According to the CDC report, racial and ethnic minority groups are disproportionately affected by obesity. Prevalence rates nationwide were

Ask the doctors

Q. My partner says I've been snoring lately. Are there any home remedies I can use to help me stop?

A. Snoring occurs when muscles in your airway relax during sleep, narrowing the airway and making your breath sounds louder as the air forces its way through. There are a number of strategies that can help. Try sleeping on your side instead of your back, which pushes your tongue to the back of your mouth. Clear nasal congestion resulting from allergies or a stuffy nose. Avoid alcohol (which may act as a sedative) and sleep medications known as benzodiazepines, which may cause your airway tissues to relax, making snoring worse. Losing weight can also help, because surplus tissue, caused by weight gain, can put pressure on and compress the airway, making snoring worse. However, if your snoring does not improve, your partner notices that you have periods during the night where your breathing ­appears to stop, or you regularly feel drowsy during the day, it may be time to pay a visit to your doctor. You could have a condition called obstructive sleep apnea, which may require treatment.

Many people with anxiety disorders have trouble sleeping. That's a problem. Too little sleep affects mood, contributing to irritability and sometimes depression. Vital functions occur during different stages of sleep that leave you feeling rested and energized or help you learn and forge memories. Sleep usually improves when an anxiety disorder is treated. Practicing good "sleep hygiene" helps, too. Here are some steps to take:

• Go to bed and wake up at the same time every day, even on weekends.
• Daylight helps set sleep patterns, so try to be outdoors while it's light out for 30 minutes a day.
• Exercise regularly (but not too close to bedtime). An afternoon workout is ideal.
• Keep naps short â€� less than an hour â€� and forgo napping after 3 p.m.
• Avoid caffeine (found in coffee, many teas, chocolate, and many soft drinks), which can take up to eight hours to wear off. You may need to avoid caffeine entirely if you have panic attacks; many people who experience panic attacks are extra-sensitive to caffeine.
• Review your medications with a doctor to see if you are taking any stimulants, which are a common culprit in keeping people up at night. Sometimes it's possible to switch medicines.
• Avoid alcohol, large meals, foods that induce heartburn, and drinking a lot of fluid for several hours before bedtime.
• If you smoke, quit. Smoking causes many health problems, including compromising sleep in a variety of ways.
• Keep your bedroom cool, dark, and quiet, without distractions like TV or a computer. Avoid using an electronic device to read in bed; the light from the screen can trick your brain into thinking it is daytime. If your mattress is uncomfortable, replace it.
• Reading, listening to music, or relaxing before bed with a hot bath or deep breathing can help you get to sleep.
• If you don't fall asleep within 20 minutes of turning in (or if you wake up and can't fall back to sleep in 20 minutes), get out of bed and do something relaxing until you feel sleepy.

For additional tips and strategies for living with anxiety,Ìýbuy , a Special Health Report from Harvard Medical School.Ìý

If lack of energy has drained your sex life, there are ways to reignite the passion.

ÌýImage: © nautiluz56/Thinkstock

Your sexual drive can stay high late in life, but often your energy for sex can diminish. Low energy not only affects your sex life, but can carry over to other parts of your life, too. You can become apathetic, no longer find pleasure in favorite activities, and become more sedentary.

However, many of these issues related to lost sexual energy can be addressed. "Never think lack of energy means an end to your sex life, and there is nothing you can do about it," says Dr. Sharon Bober, director of the Harvard-affiliated Dana-Farber Sexual Health Program. "There are many strategies you can adopt to get back in the game."

People who regularly worried about the future and dwelled on the past saw larger drops in cognition and had more harmful brain proteins than those who didn't.

Chronic worrying or ruminating could be bad for your brain. A study published online June 7, 2020, by Alzheimer's & Dementia linked these negative thinking patterns to brain changes that could be associated with Alzheimer's disease.

Study authors found that older adults who regularly engaged in what the authors called repetitive negative thinking were more likely to experience cognitive decline, including memory problems, than those who didn't. They also had higher levels of the proteins beta-amyloid and tau in their brains. The accumulation of these proteins, which create damaging clumps known as plaques and tangles in the brain, is a hallmark of Alzheimer's that begins in the earliest stages of the disease � even before an individual experiences visible symptoms of dementia.

With the introduction of benzodiazepines such as chlordiazepoxide (Librium) and diazepam (Valium) in the early 1960s, a new era in the treatment of insomnia and anxiety began. The benzodiazepines were more effective and far safer than the older drugs � barbiturates, meprobamate, and glutethimide � that had been prescribed for these purposes. For many years, benzodiazepines continued to be the most popular prescription tranquilizers and sedatives. Since the mid-1980s, new alternatives have been assuming some of these roles, but benzodiazepines are not about to leave the stage.

More than a dozen benzodiazepines are available by prescription. Benzodiazepines have a common basic chemical structure, and they all increase activity at receptors for the neurotransmitter gamma-aminobutyric acid (GABA). This transmitter inhibits the activity of neurons, slowing down the brain and nervous system. Benzodiazepines differ mainly in how quickly they are absorbed, how long their effects last, and how long they take to leave the body.

It’s well known that getting enough sleep is critical to daily functioning and long-term health. Now, new research suggests that a lack of enough REM sleep may be related to earlier death in people at middle age or older.

Research we're watching

People with chronic pain may be more likely to have a heart attack or stroke than those without chronic pain, according to a study published online May 7, 2020, by the journal Pain Medicine.

From 2001 to 2005, researchers identified 17,614 Taiwanese people who had used pain relievers for at least three months. The most common causes of pain were spinal disorders, arthritis, and headaches; the pain relievers included both over-the-counter drugs and prescription opioids. For the comparison group, researchers used 35,228 people without chronic pain who were matched by age and sex to those in the first group.

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Ask the doctor

Q. My husband is reluctant to get tested for sleep apnea. But I'm pretty sure that he has it, and I'm concerned because I've heard that it can contribute to heart disease. How are these two conditions connected?

A. As you likely know already, people with sleep apnea may snore loudly and may also periodically gasp for breath throughout the night. These explosive snorts often wake up bed partners or roommates � although not necessarily the person with apnea.

Having your sleep interrupted by the need to urinate (the medical term is nocturia) is a common cause of sleep loss, especially among older adults. Nearly two-thirds of adults ages 55 to 84 deal with this problem at least a few nights per week.

People with mild cases may wake two times a night; in severe cases, it may be as many as five or six times. The result can be significant sleep loss and daytime fatigue.