Cognitive health and memory Archive

Knuckle cracking doesn't "crack" a joint. The sound comes from gas bubbles bursting in the fluid inside the joint. While knuckle cracking is mostly harmless, other types of noises or the presence of pain can indicate a more serious joint problem.

When adult children express concerns about their parents' health, it benefits the parents to consider them. It could be that the kids are observing symptoms of conditions best treated early. If parents disagree with their kids' concerns, experts advise that parents simply express appreciation for the feedback and say they'll think about what the kids have said. If the parents want more information, experts advise writing down the concerns and either calling the doctor or bringing the matter up at the next appointment.

Social isolation and loneliness are other significant risk factors for cardiovascular disease in older women.

Over two decades ago, the Diabetes Prevention Program study showed that type 2 diabetes could be slowed or even prevented in people with early signs of it. Now, a long-term follow-up study focusing on death rates from several causes has produced some surprising results.

News and social media are filled with disturbing stories and images. Anxiety about war, coming on top of two years of the pandemic, is hitting us particularly hard. The symptoms of war anxiety can be physical or mental; knowing what tools to use and how can help break the anxiety cycle.

Most people are able to lose weight in the short term, but will probably regain that weight as time passes. By studying people who lose weight and are able to maintain the loss for several years, insight into their approach can help others understand the strategies that are most likely to lead to long-term success.

The number of people taking large amounts of melatonin (more than 5 milligrams per day) is at an all-time high. However, the amount in a supplement can be significantly higher than what the label shows. This can cause people to take too much, especially since many use melatonin regularly.

The medical world agrees that daily aspirin can help people with cardiovascular disease lower their risk of heart attacks and strokes. However, most people over age 70 without cardiovascular disease should avoid aspirin as a way to prevent a heart attack or stroke. Even if a person has taken aspirin for a long time as primary prevention of heart disease, it's time to talk to your doctor about potentially stopping it.

A placebo response (improvement in symptoms from the act of taking a drug independent of its biological effects) is not fully understood. Still, placebos are commonly used in clinical trials to test the effectiveness of a specific therapy.

A study published online Jan. 24, 2022, by JAMA Internal Medicine estimated that increasing physical activity by 10, 20, or 30 minutes a day would decrease the number of annual deaths by 7%, 13%, or 17%, respectively.