The invention pertains to systems and methods for preventing or reducing the probability of human addiction to various substances and/or treating those currently or previously addicted to substances. The invention includes a sensing mechanism to detect a presence of the addictive substance or a condition resulting from the presence of the addictive substance, a signaling mechanism to generate a signal as a result of the sensing mechanism detecting the presence of the addictive substance or a condition resulting from the presence of the addictive substance, and a receiving mechanism to provide at least one response as a result of receiving as input the signal generated by the signaling mechanism
