In light of the increasing prevalence, morbidity, and mortality of heart failure, preventative strategies are urgently needed. Risk factors include coronary artery disease, renal insufficiency, diabetes, and smoking. Essential strategies for prevention of heart failure are modification of risk factors for its development, and detection and treatment of asymptomatic left ventricular dysfunction (ALVD). In patients with ALVD, angiotensin-converting enzyme (ACE) inhibitor and β-blocker therapy can prevent progression to symptomatic heart failure. Additional recently identified preventative strategies include ACE inhibitor therapy for all coronary artery disease and diabetic patients, clopidogrel therapy in acute coronary syndromes, and avoidance of calcium channel blockers and a-blockers as first-line antihypertensive therapy.