scientific research laboratories and real-life laboratories.Weight Watchers is an active participant in the global forum of diverse disciplines related to weight management—everything from cardiology to psychology. The organization synthesizes the learnings from ongoing medical and scientific research and turns them into practical reality. This involves constant in-field testing and adaptation of their program. The experience of helping millions of people through Weight Watchers meetings also provides a living laboratory for observing what is necessary to achieve sustainable weight loss. The science is only useful if it fills a need and can be applied in real life.