A habit is defined as a way of behaving that is repeated so often it no longer involves conscious thought. A habit might be a person brushing her teeth every night before bed, or walking the dog every morning before school or work. These habits would typically be considered "good" habits to have because they are of benefit to the person performing them. Other kinds of habits might be a person stealing one item from a department store every time he visits the store, or drinking alcohol every weekend at a friend's house. These habits would typically be considered "bad" habits because they may bring harm to the person performing them.

Another definition of habit is an addiction. Both good and bad habits can be addictive in nature. When someone eats a favorite cereal for breakfast every morning, that person has established a good...