Coronary heart disease (CHD) is one of the most common and serious diseases in the United States, affecting 12 million Americans. This new edition addresses the concerns of those diagnosed with CHD, giving the most up-to-date and concise information regarding the disease and its treatment options. With the right medical treatment and lifestyle changes, those who suffer from CHD can live healthier and happier lives. Chapters explain how cholesterol affects the heart, what medical tests are needed, how medications work, what is involved in an angioplasty or bypass surgery, and how to spot the warning signs of a heart attack.