Can lifestyle changes prevent cancer?
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3 Answers
A substantial fraction of cancers are attributable to modifiable factors: tobacco, alcohol, obesity, physical inactivity, poor diet, UV exposure, and infections like HPV, hepatitis B, and *H. pylori*. Not smoking and HPV vaccination are among the highest-impact single actions.
Estimates suggest 30-50% of cancers are attributable to modifiable factors. In India, tobacco alone accounts for a very large share, including chewing tobacco and gutkha.
Infection-related cancers are highly preventable: HPV vaccination for cervical cancer, hepatitis B vaccination for liver cancer, and H. pylori treatment for stomach cancer.
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