Why I have congestive heart failure?

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Heart is like a pump, a congestive heart failure is a heart failure, a heart failure is a condition in which the heart works hard but still can't pump enough blood to meet the body's needs.

Common causes of heart failure are coronary artery diseasehigh blood pressure and diabetes. It is more common in people who are 65 years old or older, African Americans, people who are overweight, and people who have had a heart attack. Men have a higher rate of heart failure than women.

Medication can help with CHF but effect is limited. Surgery may be necessary. The treatment of CHF is complex, you should always listen to your cardiologist.

my dr wants me to loose weight, Why?

Common causes of heart failure include coronary artery disease including a previous myocardial infarction (heart attack), high blood pressure, atrial fibrillation, valvular heart disease, excess alcohol use, infection, and cardiomyopathy of an unknown cause. 

These cause heart failure by changing either the structure or the functioning of the heart. The severity of disease is graded by the severity of symptoms with exercise. 

Heart failure is not the same as myocardial infarction (in which part of the heart muscle dies) or cardiac arrest (in which blood flow stops altogether). Other diseases that may have symptoms similar to heart failure include obesity, kidney failure, liver problems, anemia, and thyroid disease. Heart failure is diagnosed based on the history of the symptoms and a physical examination, with confirmation by echocardiography.  

Blood tests, electrocardiography, and chest radiography may be useful to determine the underlying cause