June 30th, 2014
01:33 PM ET
It’s called sexting, the act of sending and/or receiving sexually explicit text or photo messages via your mobile phone. And one in five middle school-aged students are doing it, according to a new study published in the medical journal Pediatrics.
Among the 1,285 Los Angeles students aged 10 to 15 surveyed for the study, 20% reported having received at least one sext, while 5% reported having sent at least one sext.
“Very frequently it’s the image or the sex, that is finding its way to the middle schooler first, prior to any sort of conversation or education" by parents, said Ian Kerner, a sexuality counselor and father to two boys. "That makes it even more confusing (for kids).”
The study authors also looked at how sexting relates to sexual behavior among these adolescents. The survey showed that those who reported receiving a sext, were six times more likely to report being sexually active than teens who hadn't received a sext. Those who sent a sext were about 4 times more likely to report being sexually active.
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 7th, 2014
04:01 PM ET
The researchers looked at data from more than 26,000 children age 2 to 19 in the United States who participated in the National Health and Nutrition Examination Survey. They found that rates of overweight and obese children have been trending upward since 1999, with significant increases seen recently in the number of severely obese children.
Severe childhood obesity rates have more than doubled since 1999, according to the study. In 1999-2000, less than 1% of children fell into the Class 3 obesity category - meaning they had a body mass index 140% higher than their peers. In 2011-2012, 2.1% of children were in the same category. An additional 5.9% met the criteria for Class 2 obesity.
January 27th, 2014
01:59 PM ET
Although the world of medicine has made incredible progress when it comes to tackling certain illnesses, scientists still have not been able to find the cure for the common cold. But there are ways to prevent colds as well as treat them. The question is, which are the most effective?
According to a review in the recent edition of the Canadian Medical Association Journal, hand washing and possibly taking zinc seem to be the best ways to avoid getting sick. Investigators reviewed 67 randomized controlled trials that showed hand washing as well as alcohol disinfectants are the best ways to ward off colds.
Zinc was found to work mostly in children, with two trials showing that little ones who took 10 to 12 milligrams of zinc sulfate every day had fewer colds and fewer absences from school because of colds. Authors of the study suggest that zinc could work for adults. Vitamin C, the "gold standard" of cold fighters, did not seem as effective.
December 31st, 2013
08:48 AM ET
Thirty-six seconds is the average time a physician spends speaking with adolescent patients about sexuality, according to research published online Monday in JAMA Pediatrics.
About one-third of adolescent patient-doctor interactions result in no talk at all about sexuality - which includes things like sexual activity, dating and sexual orientation.
December 18th, 2013
12:02 AM ET
Most teens may be "Above the Influence" when it comes to cocaine and cigarettes, but marijuana use is growing among students.
Sixty percent of U.S. high school seniors do not see regular marijuana use as harmful to their health, according to this year's Monitoring the Future survey from the National Institute on Drug Abuse. More than a third of the seniors surveyed reported smoking marijuana in the past 12 months.
Each year, the Monitoring the Future survey asks eighth-, 10th- and 12th-graders about their drug and alcohol use and their attitudes toward illegal substances. For 2013, more than 41,000 students from 389 U.S. public and private schools participated.
October 28th, 2013
02:00 PM ET
Providing condoms to adolescents has been - and likely will continue to be - a controversial topic. But the American Academy of Pediatrics is asking communities, educators, parents and doctors to step up in making this form of contraception more available to teens.
"Although abstinence of sexual activity is the most effective method for prevention of pregnancy and STIs (sexually transmitted infections), young people should be prepared for the time when they will become sexually active," several doctors wrote in a policy statement published Monday in the organization's journal Pediatrics. "When used consistently and correctly, male latex condoms reduce the risk of pregnancy and many STIs, including HIV."
Teen pregnancy rates are declining in the United States; in 2011, the number of babies born to women aged 15 to 19 was at a record low, according to the Centers for Disease Control and Prevention. But sexually transmitted infections, or STIs, continue to be a problem for this age group. The CDC estimates that people between the ages of 15 and 24 account for half of the 20 million new STI cases that are reported each year.
In the statement, an update from their 2001 position, the pediatricians' organization recommends removing restrictions and barriers that often prevent teens from accessing condoms. Parents should be talking to their teens about sex, the doctors say, and pediatricians can help. The paper's authors encourage their colleagues to provide condoms in their offices and support increasing access in the community. They also recommend providing condoms in schools, in addition to comprehensive sexual education.
September 16th, 2013
01:46 PM ET
Efforts to increase healthy habits in American teens may be making an impact, according to a new study. Adolescents are moving more, eating better and watching less TV than they used to, and researchers say obesity rates in this group may finally be stabilizing.
The study results come a little more than a month after the Centers for Disease Control and Prevention announced it was seeing signs of progress in the fight against childhood obesity, especially in low-income families.
In the new study, published Monday in the journal Pediatrics, researchers analyzed data from three sets of students in grades 6 to 10. One set was surveyed during the 2001-2002 school year, another set during the 2005-2006 school year and the third set from the 2009-2010 school year. Researchers asked the students about their daily physical activity, nutrition, breakfast consumption, TV habits, and height and weight. They then compared the answers across the three school years to identify trends in healthy - or unhealthy - behaviors.
July 29th, 2013
12:01 AM ET
Choking is a leading cause of injury in children, according to the American Academy of Pediatrics, especially those four years and younger. Although the number of choking incidents involving toys and toy parts has gone down in the last 20 years due to manufacturer and federal government warnings, the number of food-choking cases in youngsters is still high.
"We have done a great job in this country (of) preventing choking in children on toys, “says Dr. Gary Smith, co-author of a new study on choking injuries and a professor of pediatrics at The Ohio State University College of Medicine. “Since the 1990s we've had laws and regulations, systems where we can monitor these injuries when they happen. We have no such systems in place currently for food."
The Research Institute at Nationwide Children's Hospital in Columbus, Ohio, reviewed thousands of statistics on children who had choking-related emergency room visits between 2001 to 2009. The study authors found that an average of 12,400 children under the age of 15 were treated for non-fatal, food-related choking each year, which equals about 34 children per day.
July 9th, 2013
02:52 PM ET
Nearly one in four young adults and teenagers admitted to a Flint, Michigan, emergency department for non-sexual assault injuries say they currently possess a firearm of their own or have possessed one within the past six months, according to a new study published Monday in the journal Pediatrics.
The estimate is higher than past studies have found. One reason, according to the researchers, is that the young people studied had been involved in violent disputes; previous research looked at all comers to the emergency room.
Only 17% of those reporting they possessed a firearm say they obtained the weapon legally. 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.