Physical dependency means that a person's body adjusts to a substance that the person uses intensively. Without that substance the body no longer functions prperly. When the substance is withheld, different kinds of withdrawal systoms bnegin to surface such as fever or nausea. The use of certain substances has to be progressive in order to achieve the same effect. Physical dependency and tolerance are both determined to a large extent by the stimulant and not the user.
Mental dependency is entirely different.
It is determined to a large extent by the user and not the stimulant. The desire for the substance is very strong and completely dominates a person's thinking. We warn you that this overview is necessarily concise and therfore not entirely complete. High dose may lead to loss of consciousness.