ELECTROCHEMICAL PHYSIOLOGICAL SENSOR
It is provided an electrochemical physiological sensor (1) configured to come into contact with the body fluid and comprising an absorber (2) of a body fluid defining a first surface (2a) configured to at least come into contact with said body fluid and a second surface (2b) opposite to the first surface (2a); and a circuit (3) deposited on the second surface (2b) and configured to contact the body fluid when absorbed by the absorber (2); the absorber (2) has a porosity substantially between 40% and 70% so that the body fluid is absorbed by the absorber (2) and the circuit (3) is deposited without penetrating the absorber (2).