The science behind the sense of touch involves specialized nerve endings in the skin that detect physical stimuli such as pressure, vibration, and temperature Sensory transduction and adaptation Mechanoreceptors convert mechanical stimuli into electrical signals by a process called transduction. Before the stimulus arrives (1), the mechanoreceptor is at rest. Thus the potential across the membrane PureMate PM680 Vibration Foot Massager with Magnetic Wave Apparatus and Infrared Heat, Vibrating Blood Circulation and Stimulate Feet & Leg Circulation : Amazon.co.uk: Health & Personal Care Vibrating Blood Circulation Foot Massager at Best Price in Jinhua Zhejiang Top Manufacture Company