Addiction-Some narcotic drugs like heroin, create physical dependence, that is, that the body gets used to the drug and does not work properly if it stops using it- Other substances, such as tobacco, are only addictive because the consumer cannot give up the habit of taking them. Every addiction creates a very difficult dependency to abandon, even knowing that all of this is very harmful to health. It is possible to change a habit, but it takes enormous willpower to achieve this.
