A reflexology chart mirrors a reflection of the body on the feet and hands, left foot or hand representing the bodys left half and right foot or hand its right half. In reflexology practice, technique is applied to the relevant reflex area(s) to prompt a change in the related part of the body. Research has demonstrated such effects for several reflex areas and their reflected parts of the body, i. e. the kidney reflex areas and the kidneys; the intestine reflex areas and the intestines and the brain reflex area and the brain.