Abstract
Patients are often not aware of the reversibility of chronic lifestyle-related diseases and most physicians are not telling them. The present practice of communicating treatment effectiveness with relative risk reductions does not allow clinicians or patients to evaluate the relative effectiveness of our technotherapies or lifestyle interventions. Clinicians should use the clarity of "number needed to treat," "number needed to harm," and absolute risk in communicating with patients about all available therapies and then empower the patient to make the choices that fit their needs best.