This is the first clinical trial to examine how varenicline works for youths attempting to quit nicotine vaping.

This study supports the use of a contingency management intervention as a potentially viable harm reduction strategy for adolescents and young adults not yet ready […]

While most adults had a stable pattern of use over the first year, about 13% of the participants in this study had an escalating pattern […]

Cannabis use disorder symptoms are more common in adults receiving medical cannabis cards, especially in those with anxiety or depressive symptoms.

Four weeks of incentivized cannabis abstinence among adolescents and young adults was associated with an increase in both the frequency and amount of alcohol used.