Question

what is heart attack?
points give away..​

Answer 1

Explanation:

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A heart attack is a medical emergency. A heart attack usually occurs when a blood clot blocks blood flow to the heart. Without blood, tissue loses oxygen and dies.

Answer 2

DIL KA DORAH

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Ophthalmology is the branch of medicine that deals with the anatomy, physiology and diseases of the eye.Cardiology. A branch of medicine dedicated to study of the functions and diseases of the heart. Cardiologists are specially trained to diagnose and treat heart conditions.