The main drivers of avoidable health care costs are not medical, but behavioral: Up to 85% are due to lifestyle factors, treatment adherence, disease self-care, among others. Solutions that address the consequences of lifestyle and chronic disease are simply not enough. Front line practitioners, health coaches and care managers must be proficient in the brief, highly effective engagement and health coaching approaches that are not simply promising, but proven—in rigorous research trials and real-world health care settings.