A ban is an official prohibition or restriction on certain activities, behaviors, or items. Governments or organizations often impose bans to protect public health, safety, or morals. For example, a smoking ban in public places aims to reduce exposure to secondhand smoke. Bans can apply to various areas, including substances like drugs, products like plastic bags, or activities like gambling. They are typically enforced through laws or regulations, and violations can result in penalties. Bans can also spark debates about personal freedom versus societal responsibility.