What does a cardiologist do?

Answer:
A cardiologist is a physician who is certified to treat problems of the cardiovascular system鈥攖he heart, arteries, and veins. Cardiology is classified as an internal medicine subspecialty. Knowledge of internal medicine and other specialties is required to obtain certification.Simply, they're heart doctors.

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A medical doctor who's specialty is the proper functioning and diagnosing and treating diseases
of the heart.
A heart specialist.

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base word cardio meaning heart so the correct answer is heart specialist!

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plays cards

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it is a medical doctor that's a specialist on all aspects of the human heart eg, diseases, treatments etc

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it focus on heart especially disease.

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