
Two Lifestyle Habits Drive Almost Half of Preventable Cancers Worldwide
A WHO analysis published in Nature Medicine finds about 38% of global cancers in 2022 were preventable by addressing roughly 30 modifiable risk factors. The leading factor is tobacco smoking (responsible for 15% of cancers, 23% in men), with alcohol accounting for roughly 3.2%; together these two factors make up about 48% of preventable cancers. Infections (notably HPV) and air pollution also contribute to cancer risk, while HPV vaccination exists but coverage remains uneven. The study underscores that many cancers could be prevented with sustained political commitment and targeted prevention strategies worldwide.













