Is heart attack is a one of a chronic heart disease?

You need to re-phrase your question, this doesn't make any sense.

Heart Attack, AKA Myocardial Infarction, is when part of your heart dies, usually due to lack of blood flow for various reasons. This causes the heart to work improperly. A heart attack is a symptom of chronic cardial diseases and can also continue to cardiac arrest. Arrest is when the heart stops functioning and goes into an unstable, non-pumping rhythm. Unfortunately, without regular check-ups, the first symptom of most heart diseases is sudden death.
A heart attack is an injury to the heart muscle caused by a loss of blood supply. It usually occurs when a blood clot blocks the flow of blood through a coronary artery 鈥?a blood vessel that feeds blood to a part of the heart muscle. Interrupted blood flow to your heart can damage or destroy a part of the heart muscle.

Years ago, a heart attack was often fatal. But today, thanks to better awareness of signs and symptoms and improved treatments, the vast majority of people who have a heart attack survive.

Your overall lifestyle 鈥?what you eat, how often you exercise and the way you deal with stress 鈥?plays a role in your recovery from a heart attack. In addition, a healthy lifestyle can help you prevent a first or subsequent heart attack by controlling risk factors that contribute to the narrowing of the coronary arteries that supply blood to your heart.