A lot of food and drink products which contain high levels of sugar are on sale at markets. We all know these sugary commodities can influence our health in a bad way. Some people say that those sweets should be more expensive, since higher prices would discourage society from buying those items. In the short term, It might be effective, but it would not be a long term strategy. I want to take my morning routine as an example. I usually take out a cup of fruit juice every morning on the way to work. Let’s assume that the price doubles up from 5 to 10 bucks. If you ask me what to do with it, I will probably hesitate to grab it for some weeks. However, I think people including myself are going to get used to the changed price sooner or later and start to buy it again. For me, I’m willing to pay more since I realize that my happiness costs more than 5 dollars. For others, It can be because of personal taste, memories from childhood, or some practical reasons. For these reasons, I’m aga...