This document outlines 4 ways to increase motivation and ability for behavior change. It recommends: 1) Using existing trusted social networks to encourage shared goals and accountability. 2) Identifying influential individuals within social networks to help spread messages. 3) Grouping individuals based on shared health goals to foster support. 4) Providing simple, personalized feedback on progress to double weight loss results. The document is presented by ShapeUp, Inc. to provide effective strategies for behavior change interventions.