David Hammond

David Hammond

Contact information

Office: LHS 1616

Phone: 519-888-4567 ext. 46462

Email: dhammond@uwaterloo.ca

Personal webpage: www.davidhammond.ca

Remote video URL

​Research interests

My research focuses on chronic disease prevention and global health in three main areas: tobacco/vaping, nutrition policy, and cannabis and harm reduction policy. In each of these areas, I lead large international studies to examine consumer trends and to evaluate the impact of national-level interventions, including restrictions on marketing, product standards, health warnings, and retail policies. Read more about these studies below:

Graduate supervision and student opportunities

I am currently accepting applications from graduate students with research interests related to:

  • Global health
  • Tobacco control and e-cigarettes
  • Food policy and obesity prevention 
  • Cannabis and harm reduction
  • Health communication

Graduate studies application details 

Teaching interests

  • Global health
  • Health policy
  • Health behaviour 
  • Health communications


BA Psychology, University of British Columbia

MSc Health Studies, University of Waterloo

PhD Psychology, University of Waterloo

Selected publications

See Google Scholar for full list of publications.

Cummings KM, Hammond D. E-cigarettes: striking the right balance. [Invited editorial] The Lancet 2020; January 22, 2020. https://doi.org/10.1016/S2468-2667(20)30004-9.

Hammond D, Goodman S, Wadsworth E, Rynard V, Boudreau C, Hall W.  Evaluating the impacts of cannabis legalization: The International Cannabis Policy Study. International Journal of Drug Policy 2020;77:102698. doi: 10.1016/j.drugpo.2020.102698.

Hammond D, Reid JL, Rynard VL, Fong GT, Cummings KM, McNeill A, Hitchman S, Thrasher JF, Goniewicz ML, Bansal-Travers M, O’Connor R, Levy D, Borland R, White CM. Prevalence of vaping and smoking among youth in Canada, England and the United States: repeat national cross-sectional surveys. BMJ 2019; 365: l2219.

Jones AC, Kirkpatrick S, Hammond D. Beverage consumption and energy intake among Canadians: analyses of 2004 and 2015 national dietary intake data. Nutrition Journal 2019; 18(1):60. doi: 10.1186/s12937-019-0488-5.

Selected professional activities and networks

I work closely with governments around the world and have served as an Advisor for the World Health Organization. I also serve as an Expert Witness in court cases, primarily on behalf of governments defending health regulations from legal challenges by the food, tobacco, and cannabis industries.

My research has been recognized by awards from CIHR, the Canadian Cancer Society, the Canadian Medical Association, the Royal Statistical Society of Canada, and the World Health Organization.