As per one’s innate nature & temperament, response to situations and stress differs. E.g siblings of one family may respond differently to a situation. A situation which maybe stressful for one, may not be perceived so by another or the degree may vary. Thus, the disturbance that occurs at chemical, hormonal or neuronal level is different giving rise to diseases like diabetes, thyroid, peptic ulcer, hypertension etc. Homeopathy acts at the level of mind & body.