Daily Marijuana Users. The NSDUH Report

摘要

Marijuana use impairs physical and mental health, cognitive abilities, career status, and social life. Heavy marijuana use critically lowers learning skills, and daily use may result in overall reduced intellectual functioning. The National Survey on Drug Use and Health (NSDUH) asks persons aged 12 or older to report how many days they used marijuana in the past year. NSDUH also includes a series of questions to assess dependence on or abuse of marijuana and other substances. These questions are designed to measure substance dependence or abuse based on criteria specified in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). This report examines the associations between daily marijuana use and other substance use, as well as dependence on or abuse of marijuana.