Publications on cannabis research jumped dramatically in the late 1960s and early 1970s. The number of publications declined gradually until the 1990s, although never dropping below 200 publications in a single year. Over the last 30 years, the number of publications has steadily increased annually. Based on citation data available in Medline via Web of Science.
The Health Effects of Cannabis and Cannabinoids by Cannabis research began nearly two hundred years ago. The terms used to describe cannabis and its properties have changed over time. Research topics have also shifted in response to international, federal, and state regulations and laws. This glossary explains some of the most frequently used terms and their connotations. For more information about how cannabis research is described and conducted in different disciplines, consult the research pages.