April 16th, 2014
09:02 AM ET
If you thought smoking a joint occasionally was OK, a new study released Tuesday suggests you might want to reconsider.
The study, published in the Journal of Neuroscience, is the first to link casual marijuana use to major changes in the brain. And according to the researchers, the degree of abnormalities is based on the number of joints you smoke in a week.
Using different types of neuroimaging, researchers examined the brains of 40 young adults between the ages of 18 and 25 who were enrolled in Boston-area colleges. Twenty of them smoked marijuana at least once a week. The other 20 did not use pot at all. FULL POST
April 14th, 2014
09:51 AM ET
Does your baby have difficulty calming him or herself? Falling and staying asleep? It can be stressful, especially for new parents. But once again, researchers are recommending that parents avoid plopping them down in front of the television.
According to a new study published Monday in the journal Pediatrics, fussy babies and toddlers tend to watch more TV and videos than infants with no issues or mild issues. And that can lead to problems down the road.
"We found that babies and toddlers whose mothers rated them as having self-regulation problems – meaning, problems with calming down, soothing themselves, settling down to sleep, or waiting for food or toys – watched more TV and videos when they were age 2," said study author Dr. Jenny Radskey, who works in the division of developmental and behavioral pediatrics at Boston Medical Center.
"Infants with self-regulation problems watched, on average, about 9 minutes more media per day than other infants. This may seem small, but screen-time habits are established in these early years."
April 10th, 2014
02:23 PM ET
Tamiflu, commonly used to reduce flu symptoms, may not work as well as the federal government believed when it spent more than $1.3 billion stockpiling it.
The Cochrane Collaboration, a nonprofit network of health practitioners, researchers and patient advocates, recently analyzed 46 clinical study reports on Tamiflu and another influenza drug called Relenza to determine their effectiveness.
The researchers concluded that while both drugs can stop adults' symptoms about half a day earlier, on average, than no treatment, the drugs do not reduce the rate of serious influenza complications, such as hospitalizations and pneumonia. The results were published this week in the British Medical Journal.
"A significant number of doctors see them as pretty mediocre drugs that don't do a whole bunch," said Dr. Peter Doshi, an assistant professor at the University of Maryland School of Pharmacy and associate editor at BMJ.
March 24th, 2014
04:02 PM ET
Medical marijuana might be the most effective complementary or alternative medicine to provide relief of symptoms caused by multiple sclerosis (MS) according to new guidelines from the American Academy of Neurology (AAN) released Monday.
Complementary and alternative medicines (CAM) are nontraditional therapies often used in addition to (and sometimes instead of) doctor recommended treatments.
The guidelines are based on recommendations made by a panel of nine physicians chosen by the AAN who are experts in the field of CAM. They identified and reviewed 291 studies and literature from the last 43 years. Of those, 115 made the cut; most were short, lasting between six and 15 weeks.
"This is the first-ever review, evidence-based recommendation, on the treatment of MS with CAM therapies," says Dr. Vijayshree Yadav, lead author and clinical director of Oregon Health and Science University's Multiple Sclerosis Center. "There were 29 different therapies included in the guidelines. Nineteen studies looked at cannabis." FULL POST
August 28th, 2013
07:09 PM ET
Some 37 million Americans suffer from migraines, those incredibly painful and often debilitating headaches. While they've been known to knock a person out, migraines weren't thought to permanently affect the brain - until now. A new study published Wednesday in the journal Neurology suggests migraines may indeed leave a mark.
"Our review and meta-analysis study suggests that the disorder may permanently alter brain structure in multiple ways," said study author Dr. Messoud Ashina, a neurologist at the University of Copenhagen in Denmark.
A migraine is a common type of headache where throbbing pain is typically felt on just one side of the head. Sufferers experience sensitivity to light, nausea and vomiting. Women are three times more likely to be affected by migraines than men.
June 12th, 2013
06:01 PM ET
Treating intravenous drug users with antiviral drugs may reduce their chances of HIV infection, according to a new study published Wednesday in the British medical journal The Lancet.
The Bangkok Tenofovir Study was done in Bangkok, Thailand, from 2005-2013. It was run by the Centers for Disease Control and Prevention in collaboration with the Thailand Ministry of Public Health.
Researchers recruited more than 24,000 people at 17 sites. Half took the pill tenofovir - an antiretroviral drug – daily, while the other half got a placebo. Participants were followed for about four years. Researchers found those taking the drug cut their chances of infection by 49% almost in half - approximately 49%.
May 28th, 2013
02:21 PM ET
The state of Colorado is seeing an increase in the number of children accidentally exposed to medical marijuana, according to a new study in Pediatric JAMA.
Doctors in Colorado evaluated about 1,400 patients aged 8 months to 12 years who came to the Children's Hospital Colorado emergency room from January 1, 2005 to December 31, 2011.
May 21st, 2013
04:52 PM ET
Having a schoolmate commit suicide significantly increases the chance that a teenager will consider or attempt suicide themselves, according to a new study in the Canadian Medical Association Journal (CMAJ).
The study surveyed more than 22,000 Canadian children aged 12 to 17. They were asked if anyone in their school, or anyone they knew personally had died by suicide and if they had seriously considered attempting suicide themselves in the past year. The researchers found that the risk of suicide was magnified even if the child did not know the deceased student personally.
May 14th, 2013
02:28 PM ET
Reducing salt consumption below the currently recommended 2,300 milligrams – about 1 1/2 teaspoons– per day maybe unnecessary, according to a new report released Tuesday by the Institute of Medicine (IOM).
The news follows a decades-long push to get Americans to reduce the amount of salt in their diet because of strong links between high sodium consumption and hypertension, a known risk factor for heart disease.
The IOM, at the request of the Centers for Disease Control and Prevention, reviewed recent studies published through 2012 that explored ties between salt consumption and direct health outcomes like cardiovascular disease and death. The organization describes itself as "an independent, nonprofit organization that works outside of government to provide unbiased and authoritative advice to decision makers and the public."
Researchers determined there wasn't enough evidence to say whether lowering salt consumption to levels between 1,500 and 2,300 mg per day could increase or decrease your risk of heart disease and mortality. But lowering sodium intake might adversely affect your health, the panel found.
May 6th, 2013
05:46 PM ET
The U.S. Food and Drug Administration is warning pregnant women to stay away from migraine medicine containing valproate. The agency says the drug can lead to decreased IQ scores in children whose mothers took the medication during pregnancy.
Valproate sodium (Depacon), valproic acid (Depakene and Stavzor), and divalproex sodium (Depakote, Depakote CP and Depakote ER) are among the valproate products the FDA says pregnant women should never use. That includes their generic versions.
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.