About No Smoking Day
No Smoking Day was first celebrated on Ash Wednesday 1984. It is an annual health awareness day that occurs the second Wednesday of March within the United Kingdom.
Smoking is the single greatest preventable cause of death in the world today. There are more than one billion smokers worldwide- and it kills up to half the people who smoke.
No matter how long you've smoked for, no matter how many cigarettes you smoke a day, your health will start to improve as soon as you quit.
Some health benefits are immediate, some are longer-term, but what matters is that it's never too late.
Find out moreRelated Observances
Great American Smokeout
Want to stop smoking? The Great American Smokeout is a great day to commit to a healthy, smoke-free live with the support of others.
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World Immunization Week
A week to underscore the importance of immunization in saving lives and to encourage families to vaccinate their children against deadly diseases.
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World Asthma Day
Organized by the Global Initiative for Asthma to improve asthma awareness and care around the world.
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Other Observances on March 11th 2026
National Registered Dietitian Nutritionist Day
Find out the dates, history and traditions of National Registered Dietitian Nutritionist Day
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