Reflexology, or zone therapy, is an complementary therapy involving the physical act of applying pressure to the feet, hands, or ears with specific thumb, finger, and hand techniques without the use of oil or lotion. It is based on a system of zones and reflex areas that reflect an image of the body on the feet and hands, with the premise that such work effects a physical change to the body.

There is no consensus among reflexologists on how reflexology works; a unifying theme is the idea that areas on the foot correspond to areas of the body, and that by manipulating these one can improve health through one's qi. Reflexologists divide the body into ten equal vertical zones, five on the right and five on the left.