Smoking refers to inhaling smoke from burned tobacco or other materials. The most common item smoked is cigarettes, but other tobacco products like cigars and pipes are also smoked. While some teenagers experiment with smoking occasionally, many find themselves addicted to tobacco. Smoking is a major cause of preventable death and diseases like lung cancer, tuberculosis, and heart attacks. Governments aim to prevent smoking through stringent laws limiting the sale and use of tobacco products in public places.