World No Tobacco Day is observed annually on May 31st to encourage tobacco users to refrain from use for 24 hours and draw attention to the health effects of tobacco. Tobacco is the leading global cause of preventable death, killing over 5 million people per year. Quitting smoking has immediate and long-term health benefits like reduced risk of cancer, heart disease, and stroke. Methods to quit include counseling, nicotine replacements, exercise, mobile apps, and herbal alternatives. The health risks of tobacco extend beyond smokers to effects on fetuses and second-hand smoke.