Alzheimer's Disease Archive

Research we're watching

People who sleep too much or too little may be at higher risk for cognitive decline, according to a study published Sept. 21, 2020, by JAMA Network Open. Researchers looked at self-reported sleep duration from 20,065 people in two large studies, one in the United Kingdom and one in China. The participants from the United Kingdom were ages 50 and older and those living in China were 45 and older and were followed by researchers for up to 15 years. Researchers asked participants questions about their sleep patterns and performed a cognitive assessment. The process was repeated at two year intervals during the various study periods. Researchers found that people who slept too little (four or fewer hours a night) or too much (10 or more hours a night) were more likely than more typical sleepers to experience cognitive decline.

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Q. I want to avoid another kidney stone attack. What's your advice about diet, coffee, tea, and alcohol?

A. The foods you eat and the amount of fluid you drink can contribute to some types of kidney stones. Certainly, you can help prevent recurrent kidney stones by paying attention to your fluid and food intake.

Ask the doctor

Q. Should I get a test for COVID-19 antibodies, even though I've never had any symptoms and I don't think I've had the virus?

A. A blood test for COVID-19 antibodies tells you if you have been infected in the past; it does not accurately tell you if you are currently infected. You can get an antibody test through your doctor, or possibly through a testing center set up by your state or city.

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Q. Should I make my kids get tested for COVID-19 before they come to visit me?

A. As we go to press, in most communities in the United States and Europe, the virus still is widespread — particularly among young adults. Many young adults who become infected do not develop symptoms, and therefore may not suspect they are infected. Worse, they may be shedding the virus and able to infect others. Older people are more vulnerable to becoming severely ill from the virus than young adults (although some young adults and even children can become very ill). So if my kids had symptoms that might indicate they had COVID-19, I'd ask them not to come. If they had no symptoms but were living in a "hot spot," I'd ask them to get tested before they traveled — and not to visit if they tested positive. I would hate not to see the kids, but it's a sacrifice we have to make until we control the virus.

While looking at the sunny side of life offers a lot of light moments, there may be a better path to well-being.

Optimism feels good. The expectation that positive things will happen is associated with happiness and better health, including fewer heart attacks and a lower risk for premature death. Pessimism, on the other hand, feels bad; it makes you depressed or anxious and keeps the fight-or-flight system activated, triggering chronic inflammation (which is linked to many diseases).

You might think the best way to improve your well-being is to cultivate an optimistic outlook. Think again. "Better than cultivating an artificial optimism is to see the situation and the world realistically," says Ronald Siegel, an assistant professor of psychology, part-time, at Harvard Medical School and medical editor of the Harvard Special Health Report Positive Psychology.

Looking for a boost or alternative to antidepressant medicines? Here are four therapies that may help relieve your symptoms.

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Many people suffer bouts of mild or moderate depression as they age. Health issues and the loss of a spouse, family member, or friend are common triggers that can lead to persistent sadness and loss of enjoyment.

While antidepressants like selective serotonin reuptake inhibitors (SSRIs) can be helpful to relieve and control symptoms, they are not always the right choice.

Researchers found that people who go on to develop Alzheimer's disease or a related disorder are more likely to miss paying a bill prior to being diagnosed, but such people face more significant related issues: poor financial decision-making and falling victim to financial scams.

Because change is so difficult, it's useful to have a guide when attempting to kick an addiction to drugs, alcohol or behavior. Research shows that the following steps can help you move toward your recovery goals. You have the greatest chance of success if you adopt all five steps.

1. Set a quit date. It might be helpful to choose a meaningful date like a special event, birthday, or anniversary.

Continuing work and satisfaction in life can help older adults preserve their cognitive health.

Declining brain health is perhaps the greatest fear of older adults. The good news is that you can take steps to maintain your thinking and memory for many years to come.

A healthy diet, regular aerobic exercise, and proper sleep are essential to keep your brain healthy. But work engagement and life satisfaction are two additional factors that confer mind benefits.