26 Apr '11, 11pm

Heart attacks are more serious in the morning, says study

Heart attacks are more serious in the morning, says study

PARIS: Heart attacks that occur in the morning are likely to be more serious than attacks at other times of the day, a specialist journal reported on Wednesday. Spanish researchers looked at data from 811 patients who had been admitted to a Madrid clinic with a myocardial infarction between 2003 and 2009. They used levels of an enzyme in the blood to measure the extent of dead tissue, known as an infarct, which is caused by blocked blood supply to heart muscle. Those who had had a heart attack between 6:00 am and noon, during the transition from darkness to light, had a 21-percent larger infarct compared with patients whose attack occurred between 6:00 pm and midnight. The study, published in the British journal Heart, builds on previous evidence that circadian rhythm - the famous "body clock" - influences the heart in many ways such as blood pressure, heart rate, cardiac ...

Full article: http://www.channelnewsasia.com/stories/health/view/112508...

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