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Results for search "Brain".

27 Jul

Improved Air Quality Boosts Brain Health and Cuts Dementia Risk

Reducing air pollution can significantly lower the risk of dementia and Alzheimer's disease, according to several new studies.

Health News Results - 447

MONDAY, Oct. 25, 2021 (HealthDay News) -- Even months after beating COVID-19, many people still suffer memory lapses, difficulty concentrating and other symptoms of "brain fog," a new study shows.

Researchers found that such symptoms were prevalent seven months after a COVID diagnosis -- in both patients who'd been severely ill and hospitalized, and in those who'd manag...

Getting the right amount of sleep — not too much and not too little — could reduce your risk of mental decline as you age, even if you have early Alzheimer's disease, a new study claims.

Poor sleep and Alzheimer's disease are both associated with thinking ("cognitive") declines, but separating out the effects of each has been a challenge.

This new study included 100 older adults...

Researchers may have found a noninvasive way to temporarily open the brain's borders to allow tumor-fighting medication inside.

By necessity, the brain is shielded by a layer of specialized cells called the blood-brain barrier. Its job is to allow needed substances in -- like oxygen and sugar -- while keeping out substances that could be toxic.

Unfortunately, that means medications ...

Prolonged stays in space appear to damage astronauts' brains, a small, new study suggests.

The researchers studied five Russian cosmonauts, mean age 49, who stayed on the International Space Station (ISS) for an average of 5.5 months.

Blood samples were taken from the cosmonauts 20 days before their departure to the ISS, and one day, one week, and about three weeks after they retur...

Clot-busting drugs may be safe for certain stroke patients with brain aneurysms that haven't ruptured, researchers say.

An aneurysm is a bulge in the wall of a blood vessel. In the new study, patients had suffered an ischemic stroke, which is caused by blocked blood flow in the brain.

Even though clot-busting drugs are the main treatment for ischemic stroke, they're often not give...

Imagine battling debilitating depression for years, trying everything but finding little or no relief.

That's what Sarah, 36, lived with most of her adult life.

"I had exhausted all possible treatment options," recalled Sarah, who did not want her last name used. "It [depression] had controlled my entire life. I barely moved. I barely did anything. I felt tor...

The size and shape of the blood vessels in your brain may help predict your risk of an often-fatal type of stroke, called an aneurysm, a new study finds.

An aneurysm is a bulge in an artery wall.

"A subarachnoid hemorrhage is the most dangerous type of stroke and occurs when a brain aneurysm leaks or ruptures, causing bleeding into the brain, killing more than 50% of affected peop...

A small fix might make reading a bit easier for kids with dyslexia, as well as their classmates: Increasing the amount of space between printed letters.

That's the finding of a small study that tested the effects of "extra-large" letter spacing on school children's reading speed and accur...

Type 2 diabetes may up the risk for Alzheimer's disease by altering brain function, new animal research suggests.

A University of Nevada Las Vegas team showed that chronically high blood sugar could impair memory and alter aspects of working memory networks in rodents.

"Diabetes is a major risk factor for developing Alzheimer's disease, but it is not clear why," said study author Ja...

When people suffer a severe head injury, it's hard to predict how they will fare in the long run. But a new study suggests that something fairly simple — measuring a protein in the blood — could help.

The protein, called neurofilament light (NfL), is a component of the nerve fibers brain cells use to transmit signals. Damage to those fibers (called axons) is known to foretell a high...

More than 50% of American children have detectable blood lead levels, a new study reveals. And young children who live in places with lots of pre-1950s housing and low incomes have the greatest risk.

"Public health authorities have worked commendably to reduce lead exposure for decades, and yet, substantial risk remains," said study co-author Dr. Harvey Kaufman, head of health trends rese...

Help in retaining mental function when you age could be only a few keystrokes away.

While crosswords and exercise are often touted as ways to retain thinking skills, U.K. investigators found that the internet may also help seniors stay sharp in retirement.

Those who used the internet more after their careers ended had substantially higher scores on cognitive, or thinking, tests, ac...

Certain changes in a part of the brain stem, visible in scans, might be a potential early indicator of Alzheimer's disease, a new study suggests.

Using different brain imaging techniques, researchers found that lesser "integrity" in the brain stem region was linked to a faster decline in memory and thinking in older adults, as well as certain brain changes seen in early Alzheimer's.

It's known that sexual assault affects a woman's physical and mental health. Now, researchers say these traumatic incidents may also harm her brain health.

A new study found that traumatic experiences, including sexual violence, may be linked to greater risk of dementia, stroke and other brain disorders.

"Identifying early warning signs of stroke and dementia are critical to provid...

Physically removing a blood clot in the brain is a safe and effective treatment for pregnant women having a stroke, a new study suggests.

Stroke during pregnancy remains rare, but the risk increases during pregnancy and for up to 12 weeks after giving birth, or postpartum.

The most common type is ischemic stroke, where a clot blocks blood flow in the brain. Mechanical thrombectomy ...

Cholesterol made in the brain may spur development of Alzheimer's disease, a new study suggests.

Cholesterol made by cells called astrocytes is needed for controlling production of amyloid beta, a sticky protein that builds up in the brain and accumulates into the plaques that are the tell-tale sign of Alzheimer's.

Researchers say these new findings may offer insight into how and wh...

Movement can be very difficult for people with Parkinson's disease, as shaking and stiffness play havoc with balance, coordination and gait.

There are many different tricks Parkinson's patients can use to improve their walking and avoid injury from a bad tumble -- but a new study reveals that people often have to figure them out on their own, with no help from either a doctor or physical ...

The heart rates of people sync up when listening to a story, a new study finds.

"There's a lot of literature demonstrating that people synchronize their physiology with each other. But the premise is that somehow you're interacting and physically present [in] the same place," said co-author Lucas Parra, a professor of biomedical engineering at City College of New York.

"What we hav...

Attention-deficit/hyperactivity disorder (ADHD) appears to be somehow linked to risk of dementia and Alzheimer's disease, a new multigenerational study has found.

Parents and grandparents of people with ADHD have a higher risk of Alzheimer's and dementia than people with no ADHD in their family, Swedish researchers said.

Specifically, parents of an ADHD child have a 34% higher risk ...

Older adults who regularly eat foods like fish, nuts and olive oil may have less iron accumulation in their brains, as well as sharper memories, a small study suggests.

The brain requires a certain level of iron to function normally, but the aging brain can accumulate an excess amount. And that excess iron has been linked to cognitive decline — a slow deterioration in memory and thinkin...

College athletes who suffer a concussion may take as long as a month to recover, not the two weeks considered normal, new research finds.

"Normal return-to-play time was previously set at 14 days — meaning 50% of people recovered in that time," said lead researcher Steve Broglio. He is director of the University of Michigan Concussion Center in Ann Arbor. "Our paper suggests that 28 day...

It's more than just an annoyance: Long-term exposure to traffic and train noise may increase the risk of dementia and Alzheimer's disease, Danish researchers report.

The study authors said that more than 1,200 of Denmark's nearly 8,500 cases of dementia in 2017 may have resulted from exposure to noise, which means that reducing traffic noise might help prevent the thinking, memory and beh...

Early retirement may sound appealing, but a recent study hints that putting it off a few years might help older adults retain more of their mental sharpness.

Using data on more than 20,000 older Americans, researchers estimated that if all of those people waited until age 67 to retire, their collective cognitive health would benefit.

"Cognition" refers to a person's ability to think...

Implanted brain stimulation devices used to treat epilepsy won't turn patients into someone they don't recognize, a small study shows.

"We found that the brain implants did not transform patients' sense of self or personality. Neither the long-term implantation of the electronic device in their brain, nor the electrical stimulation to modulate their brain function, led to changes in their...

For breast cancer patients battling "chemo brain," regular exercise may be a powerful prescription, a new study suggests.

The term "chemo brain" refers to thinking and memory problems often experienced by patients who undergo chemotherapy.

It's "a growing clinical concern," said study first author Elizabeth Salerno, an assistant professor of surgery at Washington University School o...

While every worker would prefer a fun, mentally stimulating job, new research reveals an added bonus: Such work could help prevent dementia in old age.

On-the-job intellectual stimulation appears to lower levels of certain proteins that block brain cells from forming new connections -- and doing so could help prevent or postpone dementia, the study's authors said.

"This is an import...

Could the constancy of a sympathetic ear help guard your brain against the ravages of aging?

Yes, claims new research that analyzed data on nearly 2,200 American adults and found those in their 40s and 50s who didn't have someone to listen to them had a mental ("cognitive") age that was four years older than those who had good listeners in their lives.

Having an ear to bend when you...

There's an old saying, "Age and guile beat youth and exuberance," and new research suggests there might be something to that.

Some key brain functions can improve in people as they age, researchers report, challenging the notion that our mental abilities decline across the board as we grow old.

With increasing age, many people appear to get better at focusing on important matters an...

Older adults who take certain diabetes drugs may see a slower decline in their memory and thinking skills, a new study suggests.

Researchers in South Korea found that among older people who'd been having memory issues, those using diabetes drugs called DDP-4 inhibitors typically showed a slower progression in those symptoms over the next few years. That was compared with both diabetes-fre...

Babies born prematurely, even just a couple weeks early, may be at increased risk of autism, a large new study suggests.

It's long been known that autism, a developmental brain disorder, is more common among children who were born preterm -- before the 37th week of pregnancy.

Researchers said the new study, of more than 4 million people, gives a clearer breakdown of the risks associ...

It's long been know that polluted can damage the heart and lungs, but new research finds that it's bad for your brain, too.

A long-term study by a Seattle team linked exposure to higher levels of fine particulate air pollution to an increased risk of dementia.

"We found that an increase of 1 microgram per cubic meter of exposure corresponded to a 16% greater hazard of all-cause dem...

A kind of 'zap' to the brain -- a technique called noninvasive brain stimulation -- may help hardcore smokers cut back, a new research review suggests.

Nicotine can trigger changes in the brain that make it hard to quit, so researchers have been looking for ways to use noninvasive brain stimulation (NIBS) techniques to counter abnormal brain activity caused by nicotine addiction.

In...

Kids may be able to swim their way to a deeper vocabulary.

That's the takeaway from a study in which researchers taught 48 kids ages 6 to 12 a few new words before they swam, did CrossFit-type exercises or coloring.

The swimmers did 13% better in follow up tests of the new words -- an outcome that did not surprise study author Madison Pruitt, a former college swimmer who conducted t...

COVID-19 can kill you. It can rob you of your breath, cause strange blood clots, and prompt side effects that last for months after you're over the initial infection.

It's also possible that COVID-19 might impact the human brain in ways that could promote the onset of Alzheimer's disease, a new study reports.

Severely ill COVID-19 patients display biological evidence of brain injury...

Something as simple as having a glass of orange juice in the morning or an apple at lunch could be one of the keys to protecting your brain health.

People who consumed just a half serving a day of foods high in a naturally occurring compound called flavonoids had a 20% lower risk of mental decline, according to a new study.

"We think it may have important public health i...

It is often said that stroke affects men and women differently. Now, scientists say the location of the stroke's damage in the brain may help explain why.

Women have more strokes, and are more likely to have symptoms such as fatigue and mental confusion rather than classic indications such as paralysis. Women also tend to have more severe strokes, according to the authors of a new study.<...

While efforts to develop Alzheimer's medications have so far borne little fruit, new research highlights the therapeutic promise of two non-drug tools: light and sound.

According to a pair of small new studies, exposing Alzheimer's patients to an hour a day of carefully modulated light and/or sound appears, over time, to slow down the telltale brain degeneration that typifies disease prog...

The controversial new Alzheimer's drug Aduhelm is creating something of a civil war in medicine, as health networks, hospitals, insurers and individual doctors weigh impending discussions with patients about whether they should take the medication.

Many doctors believe the U.S. Food and Drug Administration "moved the goalposts" to approve Aduhelm (aducanumab) in early June, and they aren'...

A drug that eases hallucinations in people with Parkinson's disease may be able to do the same for those with dementia, a new clinical trial finds.

The medication, called Nuplazid (pimavanserin), is already approved in the United States for treating hallucinations and delusions related to Parkinson's.

The new study, published July 22 in the New England Journal of Medicine, ...

A traumatic brain injury (TBI) can cripple patients for the rest of their lives, but new research suggests that many people with moderate-to-severe TBI have better-than-expected long-term outcomes.

The findings show that decisions about halting life-sustaining treatment for these patients should not be made in the first days after the injury, the researchers said.

"TBI is a life-cha...

About one in 20 kids hospitalized with COVID-19 develop debilitating brain or nerve complications that could haunt some for a long time, a new British study reports.

Children with severe infections can suffer from brain inflammation, seizures, stroke, behavior changes, hallucinations and psychosis.

About one-third of the stricken kids had symptoms that didn't resolve in the short te...

Women on hormone replacement therapy (HRT) for menopause go on to have a 58% lower risk of Alzheimer's disease and other neurodegenerative conditions, a new study finds.

Although the study wasn't designed to prove cause and effect, the findings could point the way to new treatments for such diseases, according to the researchers.

"This is not the first study on the impact of hormone...

"Shock" therapy often helps lift severe depression, but fear and stigma can deter patients from getting it. Now a large new study is confirming the treatment's safety.

Electroconvulsive therapy (ECT), as it's medically known, has been around for decades. For almost as long, it's been seen in a bad light -- fueled by disturbing media portrayals like those in the 1975 film "One Flew Over th...

Researchers have developed an implant that allowed a man with severe paralysis to "speak" again by translating his brain signals into text.

The achievement is the latest step in "brain-computer interface" (BCI) research.

Scientists have been studying BCI technology for years, with the aim of one day giving people with paralysis or limb amputations greater independence in their daily...

Can childhood lead exposure affect personality into adulthood?

Yes, a big multi-decade study suggests.

The finding stems from an analysis of data on atmospheric lead levels across the United States and 37 European nations since 1960. Lead levels were stacked up against responses to a personality survey of roughly 1.5 million men and women.

The result: Americans raised in areas...

Lawsuits claiming that the widely used bug killer chlorpyrifos caused brain damage in children were filed Monday in California.

Past research has shown that the pesticide harms the brains of fetuses and children, the Associated Press reported.

Chlorpyrifos is approved for use on more than 80 crops, but was banned for household use in 2001. The U.S. Environmental Protection ...

Marriages can remain stable after something as challenging as a brain injury for one of the spouses, new research indicates.

Though past reports have suggested that divorce rates were high among those who experienced traumatic brain injury (TBI), that was not true for most people in the current study.

"Our data dispel myths about risk of divorce after TBI and suggest a message of ...

Researchers have identified specific brain circuitry that is related to people's sense of spirituality -- and it's centered in a brain region linked to pain inhibition, altruism and unconditional love.

The findings add to research seeking to understand the biological basis for human spirituality.

"It is something of a treacherous subject to navigate," said lead researcher Michael Fe...

Behaviors associated with eating disorders can make real changes to the brain, new research shows. The findings could help explain why these serious disorders are often chronic -- and may also point the way to new treatments.

Eating disorders -- such as anorexia nervosa, bulimia and binge-eating disorder -- can result in severe complications, including death. Related behaviors include bi...

Most Americans with dementia are undiagnosed, which shows how important it is to screen and assess seniors for the disease, researchers say.

Their new analysis of data from a nationwide survey of about 6 million Americans aged 65 and older revealed that 91% of people with cognitive impairment consistent with dementia did not have a formal medical diagnosis of dementia or Alzheimer's disea...

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