For years, many people imagined a heart attack as one unmistakable event: crushing chest pain, a blocked artery and an immediate emergency. But the reality can be far more complicated, particularly for women. Some women experience chest discomfort, while others may notice breathlessness, nausea, unusual tiredness, dizziness or pain in the back, neck or jaw. The medical world has also taken an important step forward. A new 2026 definition of myocardial infarction focuses more closely on why the heart attack happened rather than simply placing it into an old numbered category.
That change matters because understanding the cause can influence how doctors investigate and manage the patient.
