Answer with Explanation:
For me, "dopamine" is like a messenger of pleasure because it only sends messages to the body when it knows that happiness is on its way. It is being released when we can satisfy certain things we yearn in life, such as eating our favorite food or shopping for clothes (if you love shopping). This means that once it is released in the body, our mood improves thus it can somehow be addicting. For example, people tend to eat more chocolate cake in several servings because they know how pleasurable it is to eat it or people cannot control online shopping because it makes them truly happy.