The document discusses bio-psycho-social dimensions of vulnerability and sustainability. It states that people become symptomatic at the crossroads of unbearable bio-psycho-social conditions. A kind of balance can be regained through regression that is often accompanied by symptomatic expressions, commonly including addiction. When bio-psycho-social resources are inadequate compared to expectations, taking the path of "doping-coping" can lead to pathological addiction as a maladaptive coping strategy. Everybody lives with unique existential conditions defined by temperament, experiences, values, family relationships, and socioeconomic environment that influence addiction risk.