Did you know that our brains our hard wired to ensure that we will repeat life sustaining activities, such as eating, drinking, procreation, and forming relationships and attachments. What happens in our brains when engaged in any of the above, is that dopamine (among other neurotransmitters) is released, which on an unconscious level informs our brains that the activity is pleasurable, important, and most importantly, must be repeated. The result is that we are drawn automatically, unconsciously toward these things, as our brains equate them with survival.