Background: Family members (spouses, siblings, offspring) of patients with coronary heart disease (CHD) may themselves be at increased risk for developing CHD for genetic, biochemical and/or behavioural reasons. Targeted approaches aimed at family members of those with established CHD may be a cost-effective way to identify high-risk persons and link them to effective risk factor modification. During pilot testing we found 29% of family members of patients recently hospitalized at our institution had ≥ 3 CHD risk factors. Encouragingly, they indicated high levels of "readiness" to change underlying risk behaviours such as cigarette smoking and physical inactivity. We have developed a 12-week family heart health program featuring a personal plan for achieving risk factor goals and weekly contact with a heart health educator. This intervention needs to be fully tested.