TIME (6/11, Park) reports that research published online June 10 in the journal Neurology suggests that “people who report higher levels of intellectual stimulation throughout their lifetimes don’t actually exhibit lower levels of protein plaques and other signs of Alzheimer’s compared to those who don’t.” The study did reveal, however, that “staying mentally and socially active can push back the appearance of memory problems and other symptoms of Alzheimer’s.”

Related Links:

— “Mental and Social Activity Delays the Symptoms of Alzheimer’s,” Alice Park, Time, June 10, 2015.

USA Today (6/11, Pager) reports that results of a study by the Substance Abuse and Mental Health Services Administration released today reveals that “underage drinking among all US residents from age 12 through 20 dropped 6.1%” over the years from “2002 to 2013.” During that same period of time, “underage binge drinking decreased 5.1%.” SAMHSA researchers “used data from the National Survey for Drug Use and Health, which measures drinking rates among those 12 and older,” in arriving at these conclusions.

The Washington Post (6/11, Gebelhoff) points out that “Federal and local governments have been encouraging parents to talk to their children about alcohol use at an early age.” The Post adds that “SAMHSA developed a campaign called ‘Talk. They Hear You,’ featuring a mobile app with interactive games to help parents prepare for conversations with their” kids. Frances M. Harding, director of SAMHSA’s Center for Substance Abuse Prevention, said, “Our target is to change social norms.” Harding added, “Have norms been changed? Absolutely.”

Related Links:

— “Underage drinking, binge boozing by minors is on the decline,” Tyler Pager, USA Today, June 11, 2015.

The Washington Post (6/10, Phillip) reports in its Wonkblog that a study has found more children are being accidentally exposed to marijuana in places where it is legal. The study conducted by researchers at Nationwide Children’s Hospital and published in the journal Clinical Pediatrics concluded that between 2006 and 2013, the rate of children who were reported to have been exposed to marijuana increased by 147.5 percent. Exposure also went up in states where medical marijuana use isn’t legal, though not as much as in states where it was legal. Study co-author Henry Spiller said in a statement, “The high percentage of ingestions may be related to the popularity of marijuana brownies, cookies and other foods.” How to keep marijuana away from children has been a “persistent problem” for legalization advocates, “but it is unclear how to make edibles less likely to fall into the wrong hands.”

According to TIME’s (6/10, Iyengar) website, the “total number of reported cases — 1,969 children between 2000 and 2013 — is not large,” but researchers believe the “rapid escalation in the rate of exposure is a cause for concern. More than 75% of the children who were exposed to marijuana were under 3 years old.” Gary Smith, a senior author of the study and director of the Center for Injury Research and Policy at Nationwide Children’s Hospital, said, “Any state considering marijuana legalization needs to include child protections in its laws from the very beginning.”

Related Links:

— “More and more little kids are finding mom and dad’s (legal) marijuana stash,” Abby Phillip, Washington Post, June 9, 2015.

Medscape (6/9, Johnson) reports that research suggests that “the heavy, long-term use of cannabis is associated with negative changes in parts of the brain not previously implicated, and is linked to deficits in learning and memory.” Investigators “used the highly specific carbon 11-labeled (+)-4-propyl-9-hydroxynaphthoxazine radiotracer — known as [¹¹C]PHNO — to image the impact of cannabis on the brain.” The researchers “showed that heavy chronic cannabis use is associated with lower dopamine release in the associative striatum and the sensory motor striatum, regions involved in cognition.” The findings were presented at the Society of Nuclear Medicine and Molecular Imaging 2015 Annual Meeting.

Related Links:

— Medscape (requires login and subscription)

The Los Angeles Times (6/9, Zarembo) reported new government research “shows that female military veterans commit suicide at nearly six times the rate of other women, a startling finding that experts say poses disturbing questions about the backgrounds and experiences of women who serve in the armed forces.” The research shows female veterans are committing suicide at a rate approaching that of male veterans.

Related Links:

— “Suicide rate of female military veterans is called ‘staggering’,” Alan Zerembo, Los Angeles Times, June 8, 2015.