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.
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...
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.
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.
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...
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...
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.
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.
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...
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.
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'...
"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...
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.
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...
When someone suffers a stroke, doctors can often remove the culprit clot obstructing blood flow to the brain. Now, a new study sheds light on why those successful procedures do not always translate into a good outcome.
Researchers found that when clot retrieval takes more than one attempt, stroke patients are more likely to still have some degree of disability three months later.