Positive Marijuana Research Database
Different countries, states and cities have variability in their preferred method of transportation, and officials wonder what effect marijuana (cannabis) will have on those various means of human travel. This study from Germany evaluated for the potential effect of marijuana use on bicycle riding ability. In order to make the assessment, repetitive practical cycling tests […]
As more of the United States implements medical marijuana laws, there is considerable interest on the effect, if any, this has on marijuana use among youth. This article states that a previous publication by Stolzenberg et al. (2015) entitled “The effect of medical cannabis laws on juvenile cannabis use”, erroneously claimed that medical marijuana laws […]
The authors of this study assembled data from the adolescent samples of the 2002 to 2013 administrations of the National Survey on Drug Use and Health, for ages 12-17 years. In the conclusion they state: “Past-year prevalence of marijuana use disorders among US adolescents declined by an estimated 24% over the 2002 to 2013 period.” […]
As more of the world recognizes the benefits of, and legalizes the use of marijuana (cannabis), concerned individuals and policymakers wonder if using marijuana is associated with poor health outcomes. In this study the authors compared 20 years of marijuana use with a variety of physical health indexes at early midlife. 1,037 individuals were evaluated […]
By 2016 49% of Americans acknowledge having tried marijuana (cannabis). As increasing legalization is potentially increasing marijuana use, some wish to determine if users of this medicinal plant use more health care services and incur greater health care costs. In this study, the authors queried the National Health and Nutrition Examination Survey from 2011-2012 to […]
Although medical marijuana is derived from the same plant species as recreational marijuana, those seeking medical relief often choose strains with unique chemical ratios not often sought by the recreational user. For example, medical users are more likely to choose profiles with significant CBD ratios present instead of seeking the highest level of THC possible. […]
Over 4,400 adult internet users completed The Center for Epidemiologic Studies Depression scale and measures of marijuana use. An internet survey was used in order to attract the most depressed and marijuana involved participants – those who might not be willing to travel, discuss marijuana use on the phone, or in person. Comparisons were made […]
Data from this study was gathered from the National Health and Nutritional Examination Survey from 1988-1994. The total sample was 10,896 adults. Marijuana (cannabis) use was based on self-reporting. There were 4 groups determined by marijuana use. 61% were non-users, 30% were past users, 5% were light users (1-4 times/month), and 3% were heavy users […]
Since cannabinoid (marijuana components) receptors are found in movement related brain regions, some wished to evaluate the effect marijuana may have on human movement. 22 marijuana users average age twenty-four, were matched with 22 non marijuana users average age twenty-five. They completed screening tests, a gait and balance test, and a clinical neurological examination of […]
The hippocampus is a component of the brain associated with long term memory and spatial navigation. There has been ongoing debate regarding the effect of cannabis (marijuana) on hippocampal volume, and whether or not earlier age initiation of use, or higher doses of marijuana have any effect on its size. This study matched 20 heavy […]