Circulation Research

Publisher
Lippincott Williams & Wilkins
History
1953–present
Website
http://circres.ahajournals.org/
Impact factor
9.214 (2009)

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Cardiology

Why heart rhythm problems tend to happen early in the morning

Many studies have shown that potentially lethal heart rhythm disturbances ('ventricular arrhythmia') are more likely to occur in the morning, when people wake after a night's sleep, but until now the trigger mechanism has ...