Key Takeaways

Quitting smoking can improve cancer patients’ odds of survival

Patients who didn’t quit after their diagnosis had a nearly doubled risk of dying within two years, compared to those who did

Patients with advanced cancer gained nearly a fully year of additional life if they quit

FRIDAY, Oct. 10, 2025 (HealthDay News) — Experts argue it’s never too late to quit smoking , and a new study says that applies to people with late-stage cancer as well.

Patients with advanced cancer gained nearly a full year of additional life if they quit smoking, compared to those who kept lighting up, researchers reported Oct 9 in the Journal of the National Comprehensive Cancer Network .

“It is never too late, and no one is ever ‘too sick’ to quit smoking,” said senior researcher Dr. Li

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