Writing instrument

A measuring recovery of a finger skin temperature of a writing instrument's user, comprising: measuring a first finger skin temperature of a user's finger contacting a grip area of the writing instrument during a writing session with the writing instrument; cooling the finger contacting the grip area with a cooling element and for a cooling duration; measuring a second finger skin temperature after lapse of the cooling duration; calculating the skin temperature reduction; measuring a series of finger temperature measurements after lapse of the cooling duration; calculating a temperature recovery rate based on the series of finger temperature measurements; comparing the skin temperature reduction and the temperature recovery rate to historical data and/or reference data; and providing an indication to the user in case that the skin temperature reduction and/or the temperature recovery rate are abnormal as compared to the historical data and/or reference data.