More than one-third of cancer cases are preventable, massive study finds Many cancers are linked to two modifiable habits: tobacco smoking and alcohol consumption. By Gemma Conroy

https://www.nature.com/articles/d41586-026-00333-1?utm_source=Live+Audience&utm_campaign=31d5ac900a-nature-briefing-daily-20260204&utm_medium=email&utm_term=0_-33f35e09ea-50432164 Nearly 40% of new cancer cases worldwide are potentially preventable, according to a new analysis. The study found that in 2022, smoking tobacco was the leading contributor to cancer cases, followed by infections and drinking alcohol. Reducing such risk factors is “one of the most powerful ways that we can potentially reduce the future cancer burden”, says cancer epidemiologist and study co-author Hanna Fink.