December 6th, 2013
12:51 PM ET
Here's a roundup of five medical studies published this week that might give you new insights into your health, mind and body. Remember, correlation is not causation – so if a study finds a connection between two things, it doesn't mean that one causes the other.
We’re ‘woefully unprepared’ for dementia
More than 130 million people worldwide will have dementia by 2050, according to a report released ahead of the G8 Dementia Summit being held in London next week. And the majority of those people will live in low- and middle-income countries.
“The absence of dementia public policy renders governments woefully unprepared for the dementia epidemic,” write the authors of the report. “There is an urgent need for a collaborative, global action plan for governments, industry and non-profit organisations.”
The advocates say research on the debilitating disease needs to be made a global priority.
December 6th, 2013
12:01 AM ET
New numbers out from the Centers for Disease Control and Prevention reveal that fewer women in the United States are having children.
Between 2000 and 2009, pregnancy rates for U.S. women fell by 12%, or nearly 6.4 million pregnancies. The pregnancy rate is the lowest it has been in 12 years.
In fact, the rates for teenage pregnancy reached historic lows in 2009, for all three major race groups: non-Hispanic whites, non-Hispanic blacks and Hispanic teenagers. In 2009, there were 39% fewer teen pregnancies than the 1991 peak rate of 61.8 teen pregnancies for every 1,000 teens.
"Research suggests that more teens are delaying initiating sex, waiting longer to have sex," said Rachel Jones, a senior research associate with the Guttmacher Institute, who was not associated with the study.
December 5th, 2013
04:01 PM ET
Eating nutritional foods is one of the best ways to reduce obesity. But following a healthy diet isn't always easy, especially for lower socioeconomic groups.
One of the biggest barriers to buying good food is the cost, many experts say. Now researchers at Harvard School of Public Health have put a dollar amount on the price of healthy eating. By reviewing 27 studies on the cost of healthy vs. unhealthy foods, they've estimated the daily cost of eating better. Their results are published in the British Medical Journal.
"Conventional wisdom has been that healthier foods cost more, but it's never been clear if that's actually true or exactly how much more healthier foods might cost," said lead study author Mayuree Rao. "We found that the healthiest diets cost about $1.50 more per day, and that's less than we might have expected."
December 4th, 2013
09:03 AM ET
The debate around adolescents and psychotropic drug use may be quieted - ever so slightly - by new data.
More than 6% of adolescents reported using psychotropic medications during the past month, according to a survey released Wednesday by the Centers for Disease Control and Prevention.
"Six percent is pretty much what I would expect for the prescription of psychotropic medications based on what we know about new disorders and how prevalent they would be among adolescents," said Bruce Jonas, a mental health epidemiologist with the National Center for Health Statistics at the CDC, who compiled the data.
Psychotropic medications are used to alter the mood, behavior or overall functioning of persons with certain mental health conditions. FULL POST
December 3rd, 2013
03:04 PM ET
You've probably heard someone say, "I'm fat but fit." Several recent studies have suggested this statement could be true. But a new review of existing studies published this week in the Annals of Internal Medicine may put a stop to the rumor.
"Healthy obesity" is just a myth, the study authors say.
Scientists know that overweight people can be what they call "metabolically healthy." This means that despite having a high body mass index, or BMI, someone can have a small waistline, normal blood pressure and low cholesterol levels, and show little to no risk for developing diabetes. The opposite is also true; thin people can be metabolically unhealthy, with high blood pressure, high cholesterol and fat that accumulates only around their middle, which is a known risk for heart disease.
This kind of paradox highlights "the complexity of the relationship between weight and mortality," the authors of this new meta-analysis write. A lot of factors impact a person's cardiovascular health, including how much they exercise and when they put on the weight.
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.