Tolerance means that you need to take more of a drug to achieve the same effect that you previously found from taking a smaller amount.

Tolerance indicates that the chemistry in your brain has become used to the regular presence of a particular drug. It is a sign of Physical Dependence.

A Twelve Step Program is one based on the original twelve steps of Alcoholics Anonymous as recorded in the 'Big Book' of AA.

The writing of these steps is attributed to the spiritual awakening and insights of Bill W. co-founder of Alcoholics Anonymous.

The twelve steps are suggestions to a change in perspective and behavior - with the goal of producing a fundamental shift in spiritual awareness as a day to day treatment for alcohol addiction.

The twelve step program of Alcoholics Anonymous was the first and is still the most prominent treatment for the condition of alcoholism.