Advertising

There is nothing wrong about the advertising itself, but there often cases, when advertising turned to persuasion.In these cases people either buy things they do not need or they buy things thinking they are good for their health, but it is not true indeed(like claims about yoghurts being extremely healthy).
There is also tobacco industry making billiards with advertising sophistication of smoking and showing young people how cool it is if you smoke or perfumes manufacturers, who use sexual appeal in their ads to draw more attention to their products.