This is a randomized, controlled trial to implement and prospectively assess and compare the usefulness of two means to promote healthy behaviors. Subjects are fire fighters who are assigned to one of two interventions or the control condition using a balanced randomization by fire station. The two health promotion interventions are 1) a team-based intervention and 2) a one-on-one intervention with a health counselor. The team intervention is based on social-learning theory, with all members of the social unit simultaneously participating. The one-on-one intervention uses a transtheoretical model and motivational interviewing techniques at the individual level.