March 4th, 2013
01:47 PM ET
Attention-deficit/hyperactivity disorder, or ADHD, is often considered something children outgrow. But researchers say the disorder can carry over into adulthood.
A new study published in this week's Pediatrics journal finds that about a third of those diagnosed as children continue to have ADHD as adults, and more than half of those adults have another psychiatric disorder as well.
Suicide rates were nearly five times higher in adults who had childhood ADHD compared to those who did not, according to the study. Researchers aren't exactly sure why; they speculate that problems associated with childhood ADHD, such as lower academic achievement and social isolation, make people more prone to life issues as adults.
February 20th, 2013
05:04 PM ET
Drinking coffee and tea rich in antioxidants may not lower your risk of dementia or having a stroke, according to a new study published Wednesday in the online journal Neurology.
The study may call into question other research suggesting a diet high in antioxidants helps reduce the risk of dementia and stroke.
Researchers followed approximately 5,400 people aged 55 years and older for nearly 14 years. The participants had no signs of dementia when they began the study and most had never had a stroke. They were questioned about how often they ate 170 foods over the course of the past year and they were divided into three groups based on the levels of antioxidants in their diet - low, moderate or high.
February 4th, 2013
10:47 AM ET
If you watched "Little House on the Prairie," chances are you remember the story of Mary Ingalls.
The television show and popular book series drew on the real-life experiences of Laura Ingalls Wilder. Mary, Laura's sister, went blind as a teenager after contracting scarlet fever, according to the story. Now a team of medical researchers are raising questions about whether that's true.
Dr. Beth Tarini, one of the co-authors of the paper, became intrigued by the question as a medical student.
"I was in my pediatrics rotation. We were talking about scarlet fever, and I said, 'Oh, scarlet fever makes you go blind. Mary Ingalls went blind from it,'" recalls Tarini, who is now an assistant professor of pediatrics at the University of Michigan. My supervisor said, "I don't think so."
Tarini started doing research. Over the course of 10 years, she and her team of researchers, pored over old papers and letters written by Laura Ingalls Wilder, local newspaper accounts of Mary's illness and epidemiological data on blindness and infectious disease in the late 19th century. What they found was intriguing.
January 22nd, 2013
11:03 AM ET
Older Americans who have hearing loss have an accelerated decline in thinking and memory abilities, compared to those with normal hearing, according to a study published in JAMA Archives of Internal Medicine.
Those with hearing loss experience a 30% to 40% greater decline in thinking abilities compared to their counterparts without hearing loss, according to the findings published Monday.
Hearing loss is common among old older adults, affecting about two-thirds of adults 70 and older, and about one-third of adults younger than 60, according to lead study author Dr. Frank R. Lin of Johns Hopkins University. A large number of people with hearing loss are untreated, Lin explained, because they associate hearing loss with the stigma of getting older.
January 21st, 2013
04:39 PM ET
In 10 years, diagnoses of attention deficit hyperactivity disorder (ADHD) increased 24% in southern California, according to a study published Monday in the journal JAMA Pediatrics.
Doctors reviewed anonymized medical records for children treated at the Kaiser Permanente Southern California physicians group between 2001 and 2010 - 842,830 children in all, according to the research.
Overall, in 2001, 2.5% of children aged 5 to 11 were diagnosed with ADHD, but that number crept up to 3.1% by 2010. FULL POST
January 8th, 2013
05:01 PM ET
Neuroscientists have been discovering mounting evidence that being fluent in more than one language protects against age-related cognitive declines. But there's still the major question: Why?
Researchers used functional magnetic resonance imaging (fMRI) to get a closer look at the brains of both bilinguals and monolinguals, comparing how their activity differs during specific tasks. This new study, published Tuesday in the Journal of Neuroscience, expands upon previous ideas that bilinguals tend to show superior task-switching abilities compared to monolinguals. The study was led by Brian Gold of the University of Kentucky in Lexington. FULL POST
January 7th, 2013
07:17 PM ET
If you take drugs to lower your blood pressure, your medication may also lower your risk of dementia, according to a new study released Monday by the American Academy of Neurology.
According to the study, people taking beta blockers, a class of drugs used to treat a number of conditions including high blood pressure, glaucoma and migraines, were less likely to have less cognitive impairment than those that did not. Beta blockers cause the heart to beat slower and with less force, which reduces blood pressure. They also open up blood vessels to increase blood flow.
January 7th, 2013
04:51 PM ET
A marker for later cognitive problems may be starting to show up in the brain tissue of former National Football League players.
According to a study published Monday in JAMA Neurology, researchers found that cognitive problems and depression are more common among aging NFL players with a history of concussion. But brain damage and mood problems among some segments of the NFL population is not stunning news anymore.
What has got scientists slightly giddy are those markers: Poor performance on cognitive tests also showing up on sophisticated brain scans. It suggests that damage post-concussion could some day be detectable by scanning the brain.
January 3rd, 2013
05:01 PM ET
Scientists can't really know what a child is thinking, but they are interested in the brain processes that happen in educational settings. To that end, a new study in PLOS Biology compares the brains of children and adults, using "Sesame Street" as a way to test what happens on a neurological level during a popular TV program aimed at learning.
"We’re kind of honing in on what brain regions are important for real-world mathematics learning in children," said lead study author Jessica Cantlon, assistant professor of brain and cognitive sciences at the University of Rochester.
January 3rd, 2013
02:26 PM ET
It's a heated question: should women take antidepressants during pregnancy? Some experts argue for it and some against, but a new study may ease the minds of women facing the decision.
Researchers say taking a common type of antidepressant does not increase the risk of having a stillborn child or losing an infant early in life. The study was published in this week's Journal of the American Medical Association (JAMA).
"It does strengthen the view that these meds are safer than we once thought," explains Dr. Jennifer Payne, director of the Women's Mood Disorders Center at Johns Hopkins School of Medicine in Baltimore. FULL POST
About this blog
Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.