The AP (12/22, Neergaard) reports that research published in Annals of Internal Medicine “suggests a lot of people may ignore potentially life-saving warning signs hours, days, even a few weeks before they collapse” due to cardiac arrest.

On its website, CBS News (12/22, Marcus) reports that the study of 839 patients found that approximately “half of patients who have a sudden cardiac arrest first experience symptoms like intermittent chest pain and pressure, shortness of breath, palpitations, or ongoing flu-like symptoms such as nausea and abdominal and back pain.” However, “80 percent of them ignore their pre-arrest symptoms.”