Quit Smoking Today
Quitting smoking isn't easy. But with help, you and your friends or family can succeed. Once you quit, you reduce your risk of lung and other cancers, heart attack, stroke, and diseases that cause breathing problems, such as emphysema. Tobacco use causes many cancer deaths. For that reason, the National Cancer Institute supports research, shares research results, and offers resources to prevent, treat, and reduce tobacco use. We invite you to explore, use, and share some of our resources and research.
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You can quit smoking – we can help

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Web Sites
- Smokefree.gov provides accurate, up-to-date information and professional assistance to help people quit smoking.
- Women.Smokefree.gov offers current, tailored information and professional assistance to help women quit smoking.
Smoking Cessation Specialists
- LiveHelp offers information and advice about quitting smoking through instant messaging with a National Cancer Institute smoking cessation specialist in English, Monday-Friday, 9 a.m. to 11 p.m. Eastern Time.
- NCI Smoking Quitline (1-877-44U-QUIT or 1-877-448-7848): Call from anywhere in the U.S. to talk to smoking cessation specialists from the National Cancer Institute in English or Spanish, Monday through Friday, 9 a.m. to 4:30 p.m. local time.
Publications
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Get the facts about tobacco and cancer
Tobacco research at NCI
Questions about cancer?
- To talk with someone in English or Spanish, call 1-800-4-CANCER (1-800-422-6237), Monday through Friday, 9:00 a.m. to 4:30 p.m. local time; TTY: 1-800-332-8615.
- Visit our Contact page for more help options.
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