Yes, people have a heartattack more frequently in December and January. But the reason isn't as clear as you might think.
The study authors looked at a database of death certificates from 1973-2001 through. They noted what time of year the deaths occurred and how the person passed. They took note of all death types, not just cardiac-related mortality.
The researchers then combined cardiac deaths for all the years in the sample and created a chart that showed the frequency of which days in the calendar year these events occurred. The result was a chart that resembled a hill. Cardiac deaths were lower in July, built as the year progressed, and then peaked on Christmas Day. There was a slight drop and then another peak on January 1. The cardiac death rate remained high through January and then began dropping in the spring and early summer.
Public health researchers around the globe have also questioned whether their country has a heart attack season. In ascientists suspected that Sweden saw a spike in heart attacks during the winter holidays. They examined data from 1998 to 2013 for cardiac-related deaths for the two weeks before Christmas as well as the two weeks after. They also looked at data from summer-time events, including the Olympics and FIFA World Cup.
The study found that the overall risk for a cardiac event increased by 15 percent between Christmas and New Year’s Day. The risk was greater for people 75 years and older, diabetics and those with a history of coronary artery disease. There was no association between heart attacks and the summer-time sporting events, which may have been expected due to Sweden’s World Cup struggles during the years in the data sample.
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