certain drugs release drugs within our brain, we "feel" high from the "natural" chemical washing across certain nero-receptors, not the actual drug we ingest. certain actions/processes release similar or different amounts of these drugs. Heroin releases a drug called THQ & that is what we feel, not the heroin. certain actions/drugs release seratonin along with hundreds of other compounds @ the same time that is what gets us "high". OCD's mimic certain chemicals that release the "feel good" ones. one's brain can be rewired to release it's stores of chemicals by behaviors/actions. if you ask me, & i'm just an old addict, life is a drug, it is addicting! r:rasta: