A method for determining a numerical score representative of a patient's health, is characterized by the following steps. At an initial calibration step, a database is established from a series of indicators relating to the state of health of the patient, each indicator being assigned a numerical value, and afterwards a statistical analysis of this database is performed so as to establish for each of said indicators a score depending on a measured value of the indicators of the state of health with respect to reference values, and to establish at least four groups constituted by said indicators, each of said groups representing information corresponding respectively to oxidative stress, hereinafter Group 1; to functions of the digestive brain, hereinafter Group 2; to functions of the reptilian brain, hereinafter Group 3; and to physical abilities of the patient coupled to his information on his general state of health, hereinafter Group 4. Furthermore, a value is assigned to each group, then a health score S specific to the patient is calculated using the formula:S=(Value Group 1+(2* Value Group 2)+(2* Value Group 3)+(3* Value Group 4))/(2* Number of groups)