In Focus:

Beer can interfere with your heart's rhythm

Armed with hand-held breathalyzers and EKGs, German scientists put in a hard month's work at Munich's Oktoberfest as they mingled with thousands of men and women who were "under the stress of alcohol," to use the scientific term.

Now they're reporting in the European Heart Journal that, after controlling for age, sex, smoking, medications, and heart disease, even moderate beer consumption is associated with irregular heart rhythms, or arrhythmias.

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