Abstract: A decorative, sturdy light chain having links of one or more regular sizes made of a precious metal alloy (preferably silver) and an adjustable catch is worn continuously about a person's waist Changes in girth circumference over a period are monitored through changes from an initial loose yet perceptible fit. The chain tightens noticeably as soon as the girth changes circumference, secretly warning of over-indulgence during a meal. When the position of the catch is altered, the person can celebrate a change in weight. Thus operant conditioning of the person is continuous and is supplemented whenever a milestone is reached.