Flu Season: Why Your Heart Might Take a Hit

The link between flu infections and heart problems is clearer now. Doctors once saw more heart attacks during cold seasons but didn’t know why. Recent studies explain the connection. Flu can trigger serious heart events, especially in people with existing heart disease. About half of adults hospitalized for flu already have a heart condition. This makes them more vulnerable when the virus attacks. One large study followed 80, 000 adults over eight flu seasons. It found that nearly one in eight patients had a sudden heart issue, such as failure or blocked arteries. In 30 percent of those cases, the patient needed intensive care; seven percent died in hospital.Another research paper looked at older adults with mild flu symptoms. Even when the illness was not severe, their risk of a heart attack or stroke doubled compared to those without flu. The findings show that the flu does more than cause fever and cough—it can also put a heavy strain on the heart. Knowing this, people with heart disease should consider flu shots and seek quick care if symptoms appear.