Category: harvardhealth_news_UNDEFINED

Taking regular afternoon naps for less than 60 minutes can improve mental alertness and increase productivity.

Staying active when knee osteoarthritis flares helps the joint stay flexible. But activity should be modified to take pressure off the knee. That could mean walking instead of running, or playing pickleball instead of tennis. Other activities that are easy on the joint include riding a stationary bike, using an elliptical machine, practicing yoga, swimming, walking pain-free distances on flat terrain, doing upper body strength training, or core strengthening. Warming up before activity helps to loosen stiff knee joints.

A 2022 study of 11,000 dementia-free people found that middle-aged participants who ate the most junk food had a faster rate (up to 28%) of cognitive decline, compared with those who ate the least junk food.

In December 2022, Congress extended Medicare coverage of telehealth visits through the end of 2024. The extension will also cover telehealth visits with occupational therapists, physical therapists, speech-language pathologists, and audiologists.

Scientists wonder if gut microbes might influence behavior in animals, including humans. Some studies suggest a link. For example, a 2022 study suggested that gut microbes can influence an animal’s motivation to exercise. Scientists speculate that the same might be true in humans. Other studies have found that a parasite called Toxoplasma gondii is tied to risky behavior in lab mice and risk-taking behaviors in humans. Scientists now even consider it conceivable that gut microbes might influence things like human intelligence, attitudes, empathy, and more, although the idea has yet to be proved.

Some medications, such as eye drops or inhalers, can be used with gadgets that make taking them easier. The devices might be especially helpful for someone with shaky or weak hands. Examples of gadgets that might help include eye drop guides, injection aids, inhaler spacers, and tube squeezers. The guides can help improve one’s grip, aim, or ability to squeeze out medication. Having better control may help a person take the correct amount of the drug.

Napping for  more than 30 minutes each day may be associated with increased risks for health problems. Causes of excessive napping include boredom, poor sleep at night, underlying conditions such as anemia or depression, medication side effects, dehydration, or malnutrition. Treating underlying conditions, staying hydrated, eating a healthy diet, becoming more active, and practicing good sleep hygiene may help reduce prolonged nap times.

Symptoms of food-related illness can show up hours or even days after ingesting a harmful microbe or toxin. Symptoms of food-related illness might include intense nausea, vomiting, stomach cramps, diarrhea, or possibly a low-grade fever (below 101° F). Someone with food-related illness should rest as much as possible, stay hydrated, and avoid sugary drinks or alcohol. A person who develops a high fever, bloody stool, severe abdominal pain, or severe dehydration should go to the emergency room.

Many older people with orthostatic hypotension (a sharp drop in blood pressure upon standing) have no related symptoms such as dizziness or lightheadedness. But they may face an elevated risk of unexplained falls.

People who increase their drinking in later midlife—consuming 21 or more drinks per week—may raise their risk of atrial fibrillation compared with those who maintain low to moderate alcohol intake.