For years doctors have been focused on specific cholesterol numbers to help patients prevent initial and recurrent heart attack. New guidelines mean only those at high risk will be recommended to take the drugs. So how will doctors decide who is at high risk?
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Atrial fibrillation (AF) that causes the heart to beat irregularly is found in a new study to hasten memory problems, researchers find. The condition is the most common type of heart rhythm problem that is expected to affect 12 million people by the year 2050, according to statistics from the Centers for Disease Control.