May 21st, 2013
01:47 PM ET
As greenhouse gases cause average temperatures to climb worldwide, human health will suffer, scientists say.
A study in the journal Nature Climate Change suggests that heat deaths in Manhattan will increase over the rest of this century in connection with higher temperatures associated with global warming. In the 2020s, heat-related deaths could rise about 20% compared with the 1980s, according to the research.
"This paper helps to remind people that climate change is real, that it’s happening and we need to prepare and make ourselves as resilient as we can to climate change," said Patrick Kinney, the study's senior author and director of the Columbia Climate and Health Program at Columbia University's Mailman School of Public Health. "It’s a real problem that we face. It’s not insurmountable."
May 14th, 2013
04:12 PM ET
Hospital-acquired infections are a huge problem in the United States. Wouldn't it be amazing if they could be prevented merely through the materials used in the hospital room?
Researchers at the Medical University of South Carolina explored covering key surfaces in hospital intensive care units in copper alloy, and found that this is an effective measure against the spread of some key types of bacterial infections. Their study is published in the journal Infection Control and Hospital Epidemiology.
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 13th, 2013
01:24 PM ET
High school students who acknowledge texting while driving are more likely to engage in other risky behaviors, such as riding with a driver who has been drinking alcohol; not wearing a seat belt; or drinking and driving themselves, according to a new study.
"This suggests there is a subgroup of students who may place themselves, their passengers and others on the road at elevated risk for a crash-related injury or fatality by engaging in multiple risky MV (motor vehicle) behaviors," wrote the authors of the study, published Monday in the journal Pediatrics.
May 6th, 2013
01:15 PM ET
As a parent, there are undoubtedly a few things you do now that before you had children you thought were gross: Changing diapers, wiping up vomit and using your own spit to clean off a child's pacifier, just to name a few.
Though it's hard to admit, most parents have done the latter. You're out at the mall when your kid drops his pacifier and there's not a place to clean it nearby. So you pick it up, suck on it a bit and hand it back to your baby.
What's the harm?
Turns out cleaning a recently dropped pacifier with your saliva - meaning you put it in your mouth before inserting it back into your baby's - may actually help strengthen your child's immune system and keep him from developing certain allergies, according to a new study in the journal Pediatrics. When parents cleaned pacifiers in this way their children were significantly less likely to develop eczema, a skin condition considered to be the most common early form of allergies.
May 2nd, 2013
07:02 AM ET
Kids don't all learn at the same pace, or in the same way. Extra tutoring doesn't always help either, but for some it helps a lot. Why?
Researchers, publishing this week in the journal Proceedings of the National Academy of Sciences, believe the answer is in the brain. By looking at the structures and wiring of children's brains, they've developed a method of predicting who will benefit most from tutoring.
This doesn't mean, however, that you will be seeing brain scans in every school.
"What we’ve done is much more modest, in terms of trying to understand what are the systems that underlie individual differences in response to math tutoring," said Vinod Menon, professor at Stanford University School of Medicine and senior author of the study.
April 9th, 2013
12:41 PM ET
Although drinking alcohol is known to be a risk factor for developing breast cancer, a new study suggests that alcohol may not have any effect on whether you survive the disease. In fact, researchers found that being a moderate drinker may actually improve your chances of survival.
"The results of the study showed there was no adverse relationship between drinking patterns before diagnosis and breast cancer survival," said Polly Newcomb, director of the cancer prevention program at the Fred Hutchinson Cancer Research Center in Seattle and the lead author of the study.
"We actually found that relative to non-drinkers there were modestly improved survival rates for moderate alcohol intake."
March 29th, 2013
11:08 AM ET
Many expectant parents are wary of all the recommended vaccines their newborns are supposed to get in the first hours, days and even the first couple of years, believing that too many vaccines too soon may increase their child's risk for autism.
A new study published in the Journal of Pediatrics Friday may put them at ease. Researchers found no association between autism and the number of vaccines a child gets in one day or during the first two years of the current vaccine schedule.
The research was led by Dr. Frank DeStefano, director of the Immunization Safety Office at the Centers for Disease Control and Prevention. Together with two colleagues, DeStefano and his team collected data on 256 children with autism spectrum disorder (ASD) and 752 children who did not have autism. The children were all born between 1994 and 1999 and were all continuously enrolled in one of three managed-care organizations through their second birthday. FULL POST
March 26th, 2013
10:04 AM ET
The virus causing your cold sore may put you at risk for something more insidious: Lower cognitive abilities.
In a study of 1,625 people, researchers at Columbia University measured specific antibodies to common infectious agents in each person's blood, and using this information, created an "infectious burden index." Participants higher on the infectious burden index were more likely to have worse cognition, or cognitive abilities.
The study, published Monday in the journal Neurology, further suggests a link between cognitive decline and herpesviridae viral infections in particular, which previous studies have also linked to Alzheimer's disease and risk of stroke, an accompanying editorial notes. Herpesviridae is a family of viruses including HSV-1 or herpes simplex virus-1, which causes cold sores and can cause genital herpes, and HSV-2, which commonly causes genital herpes.
March 25th, 2013
02:36 PM ET
At least 40% of moms are feeding their infants solid foods far too early, according a new study published in the medical journal Pediatrics, and that may lead to problems for their children later in life.
Researchers wanted to know how many babies were being fed solid foods (including cereal and baby food) sooner than recommended, whether breast-feeding or formula feeding made a difference and why solids were being introduced early. When the study began in 2005, the American Academy of Pediatrics (AAP), which also publishes the journal Pediatrics, recommended introducing solid foods when babies were between 4 and 6 months old.
In 2012, the AAP changed those recommendations. Now it says babies shouldn't be eating solid food until they are about 6 months old.
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.