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Some heavy cannabis users experience withdrawal after quitting
 
Twelve percent of frequent marijuana smokers experience cannabis withdrawal symptoms as defined by the Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5), according to researchers at Columbia University Mailman School of Public Health and Columbia University Irving Medical Center. The symptoms include emotional, behavioral and physical symptoms.
 
Study participants were drawn from the 2012-2013 National Epidemiologic Survey on Alcohol and Related Conditions-III (NESARC-III) which conducted face-to-face interviews with 36,309 people in their homes. The analysis involved 1,527 participants who used marijuana three or more times a week during the year prior to the interview.
 
Withdrawal symptoms were associated with significant mental disability, family history of depression, and several psychiatric disorders. The latter include mood disorders; anxiety disorders such as social phobia, agoraphobia, and panic disorder; personality disorder; and post-traumatic stress disorder.
 
The most common symptoms people experienced were:
  • Nervousness/anxiety, 76 percent
  • Hostility, 72 percent
  • Sleep difficulty, 68 percent, and
  • Depressed mood, 59 percent 
“Most users of the newer modes of administration—vaping and edibles—also smoke cannabis. Therefore, for users in modes other than smoking, the amount of consumption could be underestimated,” said Deborah Hasin, PhD, professor of epidemiology at Columbia’s school of public health. “Given the increase in cannabis potency in recent decades, developing reliable measures to investigate the effect of cannabis concentration and mode of administration will be important in advancing our understanding of cannabis withdrawal syndrome.”
 
Read Columbia University announcement here. Read Drug and Alcohol Dependence abstract here.

 
Study shows higher rate of stroke
among pot smokers
 
Marijuana users face a 15 percent increased risk for any kind of stroke and a 29 percent increased risk for ischemic stroke, the most common kind, says lead investigator, Dr. Krupa Patel, of a new study presented Friday at the World Stroke Congress in Montreal. She is a research physician at Avalon University School of Medicine in Willemstad, Curacao.
 
Dr. Patel cautions that this does not prove marijuana is the cause, but that there is an association that puts marijuana users at a higher risk.
 
Her study found that in more than 2.3 million American recreational marijuana users who were hospitalized, the risk of stroke rose compared to those who did not use the drug. Over five years, the rate of strokes increased from 1.3 to 1.5 percent among marijuana users across all age groups, from teenagers to adults in their 80s. More than 32,000 marijuana users in the study suffered a stroke including nearly 19,500 who had an ischemic stroke.
 
Read HealthDay article here.

 
Rossen Reports
Spot the pot: Schools using marijuana test kit
to show results instantly
 
This Today Show’s Rossen Report features a new test kit that quickly identifies the presence of marijuana. Jeff Rossen travels to Colorado where marijuana is legal and visits a high school there that uses the test. He demonstrates how the test works on marijuana-infused and non-marijuana-infused cookies, gummy candies, vape pens, and backpacks.
 
The kit includes a swab that is rubbed on one of its testing strips. The swab turns red if any THC, the active ingredient in marijuana primarily responsible for the high, is present in or on the items.
 
Click arrow in photo to see how it works.

 
States with legal marijuana
see rise in car crashes, studies find
 
Car crashes are up 6 percent in early states that legalized marijuana for recreational use according to two new studies. The Highway Loss Data Institute study compared collision claims filed to insurers in the legal states of Colorado, Nevada, Washington, and Oregon with claims filed in the nonlegal states of Idaho, Montana, Utah, and Wyoming.
 
The rates of increase range from 13 percent in Colorado and 10 percent in Washington to 1 percent in Oregon for an overall total among the three states of 6 percent.
 
The Insurance Institute for Highway Safety reviewed police-reported crashes before and after recreational marijuana was legalized in Colorado, Washington, and Oregon. It found a 5.2 increase in the rate of crashes per million vehicle registrations, compared with neighboring states.
 
Both studies acknowledge that the presence of THC in body fluids does not necessarily mean a driver is impaired and that more drivers are tested for alcohol than marijuana. Even so, “evidence is growing that legalizing its use increases crashes,” says David Harkey, president of the two institutes that conducted the studies.
 
Read USA Today story here. Read more here and here.

 
Corrections
The October 17th issue of The Marijuana Report contained two broken links.
 
The correct link to “Canada makes marijuana legal, and a national experiment begins” is here.
 
The correct link to “Combustible and Electronic Tobacco and Marijuana Products in Hip-Hop Music Videos, 2013-2017” is here.

The Marijuana Report is a weekly e-newsletter published by National Families in Action in partnership with SAM (Smart Approaches to Marijuana).

Visit National Families in Action's website, The Marijuana Report.Org, to learn more about the marijuana story unfolding across the nation.

Subscribe to The Marijuana Report e-newsletter.


The Marijuana Report Staff
Executive Editor—Sue Rusche
Editor—Nicole Carter
IT Consultant—Lee Clontz
Social Media Coordinator—Margarita Eberline
 
We are grateful to our Board of Directors and Senior Adviser for their support of National Families in Action, which produces The Marijuana Report website and e-newsletter.
 
National Families in Action
Board of Directors

William F. Carter, Chairman of the Board
Realtor Berkshire Hathaway HomeServices – Georgia Properties, Atlanta.
Sue Rusche, President and CEO, Atlanta.
Richard L. Brown, Secretary
Attorney (Ret.), Lakewood Ranch, Florida
Founder & Chairman, Sudden Cardiac Arrest Association 
Marcie Beskind, Treasurer
Chief Financial Officer/Chief Administrative Officer
Jewish Federation of Greater Atlanta.
Jeannine F. Adams, Director
President and CEO, J. Addams & Partners, Atlanta.
Jack L. Arbiser, MD, PhD
Thomas J. Lawley Professor of Dermatology
Winship Cancer Institute, Emory University, Atlanta
William H. Avery, Director
Partner (Ret.), Alston & Bird, LLP, Atlanta.
Margarita Eberline, Director
Strategy Director, 360 Marketing Plus, Atlanta.
Robert Margolis, PhD, Director
Founder, Caron Solutions Intensive Outpatient Program, Roswell, Georgia.
Shannon Murphy, MD FAAP
Birmingham, Alabama 
 
Senior Adviser
Kent “Oz” Nelson, Chairman and CEO (Ret.)
United Parcel Service, Atlanta.
 
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