Stroke Archive

A 2022 study found that high blood pressure more than doubled the risk of being hospitalized from an Omicron-variant COVID-19 infection regardless of full vaccination, including a booster dose of an mRNA vaccine.

An estimated 30 million Americans experience some level of hearing loss, but only about 20% of them seek hearing aids. Many people can't accept they can't hear well, or won't act on symptoms. People should seek help if they have trouble hearing conversations, TV, and other sounds, and should see a doctor quickly if they have hearing loss in only one ear, pain, ear drainage, or vertigo. Visits with an audiologist and otolaryngologist (ear, nose, and throat doctor) are typically needed to get prescription hearing aids. Over-the-counter hearing aids are expected to be available online and in stores starting in late 2022.

Each year, millions of couples face one partner's serious diagnosis with a condition such as cancer, heart or kidney failure, or neurological illness, among others. People can support their partners through a difficult diagnosis and treatment by keeping communication open, maintaining daily routines, becoming informed about the medical condition, attending doctor visits, adding assistive devices in their home, getting wills and other legal documents in order, and seeking and accepting help from others.

A 2022 study suggests that following certain healthy habits throughout life can create a "cognitive reserve" that may protect the brain from dementia. People in their 60s and 70s can still build up their reserve by pursuing a combination of brain-stimulating activities.

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.