The system comprises:- a measurement system (23) which measures an index of non-conscious adjustments achieved by a human user, as a composite index of user-specific physiological data and user-specific behavioural data,- a calculation system (25) calculating a pattern index representative of the location of the user inside a mental suffering grid comprising patterns of mental suffering from a predictive model (16), and pre-established structured experimental data descriptive of relationships between values of index of non-conscious adjustments achieved by experimental human users and said experimental human users mental suffering historical data.
