Save. A hookah is a type of water pipe used to smoke flavored tobacco, which is a popular social activity among young adults in the United States, the United Kingdom and the Middle East.ave. A hookah is a type of water pipe used to smoke flavored tobacco, which is a popular social activity among young adults in the United States, the United Kingdom and the Middle East.
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons.
A cardiologist is a medical doctor who specializes in blood vessels, the heart and the cardiovascular system. Conditions treated by a cardiologist include heart attacks, heart murmurs, coronary heart disease and hypertension. Cardiologists practice preventative medicine, diagnose and treat heart disease, and may also perform some minor surgical procedures.