Some of us just don’t want to get a flu shot every year. It’s too much trouble to get an appointment, or we just don’t like needles — or maybe we figure that we’ll just tough it out for a week if we do get the flu. After all, it’s not going to kill us, right?

A researcher at the Department of Veterans Affairs Medical Center in Minneapolis has come up with a strong reason to get an annual flu shot: You could have a heart attack if you don’t.

After studying 450,000 medical records of four flu seasons, the

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