It’s been a topsy-turvy few days in the world of heart health and disease. Last week, the American Heart Association and American College of Cardiology released new guidelines that upended previous recommendations for who should take a cholesterol-lowering statin. A few days later, two Harvard physicians challenged the accuracy of the calculator included in the guidelines, saying it would cause many people to unnecessarily take a statin. The story made headlines in The New York Times and prompted a closed-door review by the guidelines committee. The controversy over the calculator should serve to improve this tool. Adoption of the guidelines should help prevent more heart attacks, strokes, and premature deaths. It’s important to keep in mind that guidelines are just that—information to guide a decision, not to mandate it. The best approach is to talk about what’s best for you with a trusted physician.