A method of detecting a time varying signal from a patient, said method comprising the steps of: applying a first surface of an adhesive material to a patient, wherein said adhesive material is provided at a thickness of less than about 500 microns yet provides total peel strength of at least about 600 gram / inch and receiving a time varying signal at a first electrode that is in contact with a second surface of the adhesive material that is opposite the first surface. Fig. 1
