STOP smoking ad

I guess you have seen this kind of picture in your life. It directly shows dangerousness of smoking. People seem to be able to understand easily that smoking is harmful to our health if they see this picture.

There are many other public advertising to persuade people to stop smoking, and there are more designed public ad but I chose this because it is really direct not implying. In case of Health belief model, threat of diseases is important factor. If people understand dangerousness of smoking and after that people feel threat of diseases caused by smoking, likelihood that people take some action to avoid that disease will get high. Precise Health belief model has other factors, but the most important factor is threat of diseases. If it’s not existing, people never change their behavior more healthier.