Public Health News Roundup: June 9
NIH Researchers Publish Review of Key Marijuana Adverse Health Effects
As more states consider legalizing marijuana, researchers at the National Institute on Drug Abuse (NIDA)—a division of the National Institutes of Health—have published a review of adverse health effects of the drug, including impaired driving. The review was published last week in the New England Journal of Medicine and the study authors consider a number of key concerns including:
- Rising marijuana potencies
- Possible health consequences of secondhand marijuana smoke
- Long-term impact of prenatal marijuana exposure
- According to the reviewers, research suggests that marijuana impairs critical thinking and memory functions during use and that these deficits persist for days after using
- A long-term study showed that regular marijuana use in the early teen years lowers IQ into adulthood, even if users stopped smoking marijuana as adults.
“It is important to alert the public that using marijuana in the teen years brings health, social, and academic risk,” said lead author and NIDA Director Nora D. Volkow, MD. NIDA offers additional information on the consequences of marijuana here. Read more on substance abuse.
Social Media is a Largely Untapped Communications Tool for Health Policy Researchers
As social media use continues to expand, it also presents a growing opportunity for health policy researchers to communicate with both the public and policy makers. However, few of these researchers appear to be using social media to the best of its potential in this field, according to a new study in the journal Health Affairs. The study, which was funded by the Robert Wood Johnson Foundation, examined 325 health policy researchers, finding that only 14 percent of participants reported tweeting and only 21 percent noted blogging about their research in the past year. Many cited fears that social media would not be compatible with their research, the creation of professional risks and the lack of respected it is given by their peers or their academic institutions as obstacles to social media use. “Historically, the communication gap between researchers and policy makers has been large,” concluded the authors. “Social media are a new and relatively untested tool, but they have the potential to create new communication channels between researchers and policy makers to help narrow that gap.” Read more on technology.
Study: Many Preschool-aged Children Spending Too Much Time in Front of TVs, Computers
Many three- and four-year-olds are spending more than twice the recommended amount of time—two hours—in front of computers and television screens, according to a new study in the journal Child Indicators Research. Utilizing data on 2,221 preschool-aged children from the 2007 Head Start Family and Child Experiences Survey, researchers found that 55.7 percent of children had a television in their bedroom and 12.5 percent had high home screen time, defined as more than four hours each weekday. They also found that 56.6 percent of children had access to a computer at home and 37.5 percent had used it on the last typical weekday. In addition, 49.4 percent of children used a classroom computer for more than one hour each week and 14.2 percent played computer games at school for more than five hours each week. “This research should be used as a foundation for additional studies-- particularly those that look at educational screen time versus entertainment screen time,” said Erica Fletcher, a PhD student at Ohio State’s College of Public Health and lead on the project. “It’s a critical time to dive deeper into that. Since the data were collected, devices with screens like tablets and smart phones have become more affordable and are increasingly being used in the classroom. That has helped narrow the economic ‘digital divide’ on accessibility.” Read more on pediatrics.