Calif legislature advancing two bills to further weaken public health marijuana protections

Last week i blogged about the new evidence from California about the success in almost eliminating youth cigarette smoking and keeping vaping at less than half the national average. Unfortunately, the same Statewide California Student Tobacco Survey showed that youth marijuana use was substantially higher than tobacco use.  Specifically, almost one third (31.2%) of highContinue reading “Calif legislature advancing two bills to further weaken public health marijuana protections”

New studies for UK, Netherlands and Flanders and US confirm gateway effects of e-cigs to combusted tobacco products

Three new studies add to the already overwhelming case that e-cigarettes are a gateway to combusted product use; two of these studies also show that combusted tobacco use predicts later e-cigarette use among youth. These studies are benefit from the fact that the data were collected relatively recently, which is important because e-cigarette technology isContinue reading “New studies for UK, Netherlands and Flanders and US confirm gateway effects of e-cigs to combusted tobacco products”

Unhealthy air pollution in cannabis dispensary that allows on-site consumption

States are moving quickly to legalize adult use of cannabis and many permit on-site consumption of cannabis products in retail outlets or marijuana lounges. All the inhaled forms of cannabis (smoking, vaping, dabbing) generate an aerosol of ultrafine particles that carries the THC (the psychoactive agent in cannabis) deep into the lungs where it isContinue reading “Unhealthy air pollution in cannabis dispensary that allows on-site consumption”

Good news: Youth e-cig use dropped in 2020

The CDC recently reported big drops in e-cigarette use between 2019 and 2020 (high school dropped from 27.5% to 19.6% and middle school dropped from 10.5% to 4.7%). As the figure above (courtesy of CDC.) shows, however, e-cig use is still very high, way above where cigarette smoking and e-cigarette use were nine years earlierContinue reading “Good news: Youth e-cig use dropped in 2020”

Register for UCSF “It’s about a Billion Lives” symposium on Jan 29, 2021

Registration is now open for UCSF’s annual “It’s About a Billion Lives” Symposium will be held Friday January 29, 2021 from 8:00am–12:30pm Pacific Time by Zoom webinar.  In addition to the oral presentations, there will be posters from other UCSF research. KEYNOTE: “Half a century later it is still about social acceptability,” Stanton A. Glantz,Continue reading “Register for UCSF “It’s about a Billion Lives” symposium on Jan 29, 2021″

SF Board of Supervisors passes tobacco smokefree multiunit housing bill but exempts marijuana

Tonight the San Francisco Board of Supervisors voted 10-1 to make multiunit housing tobacco smokefree but turned a blind eye to the evidence on the similar harms of secondhand marijuana smoke. The Board will have to vote a second time next week to send the ordinance to the mayor for signature. Marijuana advocates successfully arguedContinue reading “SF Board of Supervisors passes tobacco smokefree multiunit housing bill but exempts marijuana”

Smoking marijuana associated with higher heart disease and stroke risk

One of the difficulties in studying the epidemiological link between marijuana use and disease is the fact that most people who smoke marijuana also smoke cigarettes, making it hard to pry the effects apart in a statistical analysis. Siddarth Shah and colleagues just published an important analysis that avoids this problem by only studying neverContinue reading “Smoking marijuana associated with higher heart disease and stroke risk”