Google searches from 2004 through April 2019 were used to measure U.S. public interest in cannabidiol (CBD), a chemical component of marijuana. Searches from the United States that mentioned “CBD” or “cannabidiol” were stable from 2004 through 2014 before substantial increases in search volumes of almost 126% in 2017 compared with 2016 and 160% during 2018 compared with 2017. There were 6.4 million Google searches for CBD during April 2019 and year-over-year forecasted search volumes are expected to increase nearly 118% during 2019 compared with 2018. A limitation of this observational study is that Google searches may reflect interest in CBD rather than interest in its use. Researchers urge that attention to CBD be a public health priority because of the growing interest that surrounds it to understand who uses it and why, and to evaluate its effects and potential drug interactions.
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John W. Ayers, Ph.D., M.A., University of California San Diego, and coauthors
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This part of information is sourced from https://www.eurekalert.org/pub_releases/2019-10/jn-igs102119.php