There are opiate receptors in the brain because your brain produces transmitters that bind to those receptors. You should expect certain behaviours you engage to change your personal biochemistry in various time spans as well.
A fair point. I should add probably the necessity of a positive feedback loop to the definition.
There are opiate receptors in the brain because your brain produces transmitters that bind to those receptors. You should expect certain behaviours you engage to change your personal biochemistry in various time spans as well.
A fair point. I should add probably the necessity of a positive feedback loop to the definition.