Tobacco dependence is the leading cause of mortality in Canada. Although most smokers express a desire to stop smoking, only a small number are able to succeed. A new study from the Centre for Addiction and Mental Health (CAMH, Canada) and the National Institutes of Health (NIH, USA) reveals that nicotine use is highly addictive in primates.

Concerns about the risk of radiation-induced cancer are growing with the increasing number of cancer patients surviving long term.