Abstract
AIM: To suggest a new paradigm for addictions. METHODS: Consideration of relevant research findings and thought experiments. RESULTS: Common mental motors leading to addictions are pleasure-seeking and hyperbolic discounting. The important point of the latter is that given two choices of future rewards, commonly one initially prefers the larger one available after a longer waiting time but despite this the smaller and sooner reward will be chosen when it becomes available. These are general biological properties, found at least in human beings, the rat, and the pigeon. If this continues it may create an unconscious habit, difficult to change. Several other risk factors for addictions are known, notably both externalizing and internalizing mental problems. Predisposing factors are likely to interact. CONCLUSIONS: The above suggests a new paradigm for addictions. Pleasure provides temptations, hyperbolic discounting weakens the will. Habits emerge. Addictions seem to be a group of problems of its own kind, not diseases, because diseases do not bring about pleasure, and are not sought for pleasure.