Everyone should be alert to the following "signals" of a heart attack:
Uncomfortable pressure, fullness, squeezing or pain in the center of the chest lasting two minutes or more.
Pain may spread to the shoulders, neck or arms.
Severe pain, dizziness, fainting, sweating, nausea or shortness of breath also may occur.
Minutes count when a heart attack strikes, the American Heart Association reminds.
Persons recognizing the "signals" should call 911 immediately to get emergency medical help or get someone to take them to a hospital.