A method for stimulating and sensing sweat includes dosing a sweat stimulant to skin effective to generate sweat at a generation rate of at least 0.1 nL/min/gland for a duration of six hours or more per dose of the sweat stimulant, and sensing generated sweat using a device placed on the skin comprising at least one sensor specific to an analyte in sweat. The dosing comprises at least one of: applying a charge density of less than 320 mC/cm2/day or applying a one-time dose of the sweat stimulant.
