High cholesterol can put you at risk for heart disease or stroke. But you can improve your cholesterol numbers with a sound treatment plan. Metabolic SyndromeThis group of factors can multiply your risks for heart disease, diabetes and stroke. Focused changes can improve your health.
http://www.heart.org/HEARTORG/Conditions/Conditions_UCM_001087_SubHomePage.jsp
Streptococcal M protein and coxsackievirus B have regions that are similar to the myosin protein found in the heart muscle. During and after the infection, the immune system may attack cardiac myosin. Myocarditis may or may not include death (necrosis) of heart tissue.
https://en.wikipedia.org/wiki/Myocarditis
Heart disease is an umbrella term for any type of disorder that affects the heart. Heart disease means the same as cardiac disease but not cardiovascular disease. Cardiovascular disease refers to disorders of the blood vessels and heart, while heart disease refers to just the heart.
http://www.medicalnewstoday.com/articles/237191.php
The heart is the core of the cardiovascular system. Your cardiovascular system consists of your heart and the blood vessels that carry blood throughout your body. Your heart is located to the left of the middle of your chest. It is a large muscle about the size of your fist. It works as a pump. The blood carries nutrients and oxygen that your cells need for energy.
http://www.heartlandcardio.com/Home/PatientEducationLibrary/tabid/1028/ctl/View/mid/2275/Default.aspx?ContentPubID=282
Myocarditis or inflammatory cardiomyopathy is inflammation of heart muscle. The consequences of myocarditis vary widely. It can cause a mild disease without any symptoms that resolves itself, or it may cause chest pain, heart failure, or sudden death.
https://en.wikipedia.org/wiki/Myocarditis
Cardiomyopathy refers to diseases of the heart muscle. These diseases have many causes, signs and symptoms, and treatments. In cardiomyopathy, the heart muscle becomes enlarged, thick, or rigid. In rare cases, the muscle tissue in the heart is replaced with scar tissue. As cardiomyopathy worsens, the heart becomes weaker. It's less able to pump blood through the body and maintain a normal electrical rhythm.
https://www.nhlbi.nih.gov/health/health-topics/topics/cm/
Heart Attack Risk Assessment. Determine your risk of having a heart attack or dying from coronary heart disease and get a report to discuss with your healthcare provider. Determine your risk of having a heart attack or dying from coronary heart disease and get a report to discuss with your healthcare provider.
http://www.heart.org/HEARTORG/Conditions/Conditions_UCM_001087_SubHomePage.jsp
Treatment. Treatment for cardiomyopathy depends on the type and severity of your condition. Cardiomyopathy may be treated with dietary changes and medications. Individuals with a severely weakened heart may need a pacemaker or surgery to sustain life until a donor heart for transplantation is available.
http://www.heartlandcardio.com/Home/PatientEducationLibrary/tabid/1028/ctl/View/mid/2275/Default.aspx?ContentPubID=282
Angina. Also known as angina pectoris, angina occurs when an area of heart muscle does not get enough oxygen. The patient experiences chest discomfort, tightness or pain. Angina is not technically a disease, but rather a symptom of coronary artery disease. Lack of oxygen to the heart muscle is usually caused by the narrowing of the coronary arteries because of plaque accumulation (atherosclerosis).
http://www.medicalnewstoday.com/articles/237191.php
Children and adults can be diagnosed with a heart defect occurring at birth. Learn about the types of defects and available treatment options. Peripheral Artery Disease (PAD)PAD may occur when blood vessels of your legs, arms or torso are narrowed by plaque.
http://www.heart.org/HEARTORG/Conditions/Conditions_UCM_001087_SubHomePage.jsp
meaning a disease condition of heart muscle is
The meaning of a disease condition of heart muscle is  Angina Pectoris. A disease condition of heart muscle is angina pectoris.