Brain injuries Archive

In a 2023 study, among people age 50 or 60 who reported high rates of exercise, those who said they slept less than six hours per night had faster rates of cognitive decline over the next 10 years than those who said they got six to eight hours of sleep per night.

Memory loss is a pervasive worry. Dementia will affect an estimated nine million Americans by 2030 and 12 million by 2040. A 2023 study suggests six healthy lifestyle factors can significantly slow memory decline: eating a healthy diet, exercising regularly, not smoking, not drinking alcohol, being socially active, and engaging in brain-challenging activities. Another 2023 study suggests regular Internet use may be linked to a lower risk of dementia.

Accelerated cognitive decline may be more common after a heart attack, probably because the same factors that lead to narrowed heart arteries (the root cause of most heart attacks) can also cause tiny, silent strokes. An accumulation of these strokes shows up as bright areas (called white matter lesions) on an MRI scan. These lesions are markers of typical cognitive changes that occur with age. But people who have heart attacks likely have more white matter lesions and experience even greater cognitive decline.

A 2023 study suggests that eating more magnesium-rich foods contribute to better brain health—especially in women—as people get older. This may lower the risk of dementia.

Misophonia is a sensory processing disorder characterized by extreme aversion to sounds people make, such as chewing, sniffling, throat-clearing, and heavy breathing. A 2023 study suggests one in five adults deals with misophonia, which can hamper family and social life. Treatment options typically blend behavior-based therapies with medication. Cognitive behavioral therapy is emerging as an evidence-based treatment. People with misophonia can also ease sound aversions by wearing earplugs or headphones and using white noise machines.

Increasing evidence suggests that people who take a daily multivitamin pill have a lower risk of cognitive decline compared with people who don't take multivitamins. In particular, two randomized controlled trials published in the spring of 2023 found that people older than age 60 who take a multivitamin are less likely to experience a slight age-related cognitive decline, at least over the next three years, compared to those taking a placebo. The benefit appeared to be particularly true for people who had cardiovascular disease.

In a 2023 study of more than 28,000 older adults, those who reported socializing the most frequently lived the longest, compared with people who said they didn't socialize.

A 2023 study suggests that some brain changes in people with obesity appear similar to those that occur in people with Alzheimer's disease, the most common cause of dementia.

A transient ischemic attack (TIA) can cause a range of unsettling symptoms, including slurred speech or arm weakness. The symptoms appear suddenly but usually last less than five minutes, which is why TIAs are often ignored or missed. However, two of every five people with a suspected TIA who get an appropriate brain imaging test find out that they actually had a stroke. Recognizing the symptoms and seeing emergency care right away is vital. The mnemonic BE-FAST (which stands for balance, eyes, face, arms, speech, and time) was designed to help people identify the symptoms of a TIA or stroke and to act quickly.

Two studies found that managing stress and eating a plant-based diet with at least seven servings of leafy green vegetables per week can help improve cognitive function and protect against Alzheimer's disease, respectively.