Stroke Archive

People who ate large amounts of ultra-processed foods had a greater risk of later developing dementia compared with people who ate little of these foods, according to a 2022 study. Researchers estimated that switching out even 10% of ultra-processed foods for healthier options might lower one's risk.

In August 2022, the FDA approved a new category of safe, regulated hearing aids to be sold over the counter. The devices are meant only for people with perceived mild-to-moderate hearing loss who need to amplify the volume of sounds around them.

Scientists are studying two novel approaches to improve memory. One approach centers on molecules in the blood and spinal fluid that appear to help improve memory. So far, experiments have been limited to lab animals. Another approach involves exposing the brain to electrical currents. A study in humans, published online Aug. 22, 2022, by the journal Nature Neuroscience, found that electrical stimulation directed at specific areas of the brain improved both working memory and long-term memory for at least a month.

There are many misconceptions about dementia. One is that it's a disease. In fact, dementia is a general term describing thinking and memory skills that have deteriorated to the point of experiencing problems with daily activities. Another myth is that dementia is part of normal aging. It isn't; dementia is simply more common as people get older — just like heart disease, stroke, and cancer. Other common myths about dementia include the notions that it always appears as memory loss, it's always genetic, it causes the loss of all memories, and it's never reversible.

Cervical artery dissection, a rare but potentially devastating cause of stroke, is a tear in the lining of one of the main arteries that carry blood to the brain. Any sudden, jerky neck movements, including chiropractic neck adjustments and whiplash from a car accident, can cause such a tear. Cervical artery dissections also have been reported after strenuous weight lifting, tennis, head-flinging dance moves, yoga, and roller coaster rides. The dissections occur in only about three in 100,000 people per year, but they are one of the most common causes of stroke in younger people.

A 2022 study found that people with chronic kidney disease were less likely than similar adults without the condition to eat fruits and vegetables. Researchers said more studies are needed to determine if this dietary pattern is a cause or a result of the disease.

In recent years, treatment options for inflammatory bowel disease have expanded rapidly, with new types of drugs, new medications within existing classes, and new combinations of treatments for some patients.

Life expectancy is one measure of the general health of a population. In the US, life expectancy had been climbing for more than a century — until the pandemic. After dropping in 2020, it dropped again in 2021, and some population groups fared worse than others.

Dry eye disease can redden eyes and make them sting, burn, or hurt. Relief may require a combination of strategies.

Alzheimer's disease and other forms of dementia affect all the regions of the brain involved in driving, but whether or not a person should give up driving depends on the severity of the disease and the specific cognitive abilities that are impaired.