Many people drink soft drink. They know it is unhealthy but they still drink it. Some drink more than others and more than water. This behavior we call it soft drink addictions. Soft drink addiction is happening all over the world. One reason of soft drink addiction is that people use soft drink to quench thirst and it is very tasty. When you feel thirsty, the first thing you think of is a soft drink. It tasty and helps to refresh you. Another reason is that people like to drink soft drink because it is available everywhere and cheap. You can get soft drink easily. You will find a place that sells soft drink almost everywhere such as, convenience store, restaurant and grocery store. And importantly, soft drink is cheap. A final reason that makes people addicted to soft drink is promotions and advertising. Now, advertising has influenced to purchase soft drink. Good advertising makes the purchase decision easier.