METHOD FOR OPERATING A VEHICLE

Operation of a vehicle involves determining a cortisol content in the blood of a driver of the vehicle. The cortisol content in the blood of the driver is derived using a cortisol content in the sweat of the driver, detected sensorily by a wearable data processing unit. Depending on the derived cortisol content of the driver, settings of vehicle parameters and/or vehicle functions are adjusted to reduce the risk of an accident.