Burning tobacco creates smoke. This smoke contains high levels of harmful chemicals that primarily cause smoking-related diseases like lung cancer.
The best choice any smoker can make is to quit tobacco and nicotine entirely—but many don’t. Any adult who doesn’t quit can cut out burning by switching to a smoke-free alternative that’s just that - free of smoke. Alternatives that have been backed by science and made to a high standard have the potential to considerably reduce harm compared to continued smoking.
These alternatives are still addictive and not risk-free, but they are a better option for adults than continuing to smoke.