Since February is American Heart Month, it’s the perfect time to refresh your memory on the warning signs of a heart attack.

Heart attacks aren't always the swift and intense events that are portrayed on TV. As a result, some people may delay calling 911 because they don't realize that what they're feeling is a heart attack.

“Most heart attacks involve discomfort (felt in the center of the chest) that lasts more than a few minutes or comes and goes,” says Arti Singh, MD, a cardiologist with Prairie Cardiovascular. Many people describe it as pressure, squeezing, fullness or pain. Oth...