During a heart attack, swift action is critical. Recognizing symptoms like chest pain, arm discomfort, or shortness of breath is key. Call emergency services immediately and keep the person calm. If advised and not allergic, give aspirin. Perform CPR if trained, and stay with them until help arrives. Early response can save lives.During a heart attack, swift action is critical. Recognizing symptoms like chest pain, arm discomfort, or shortness of breath is key. Call emergency services immediately and keep the person calm. If advised and not allergic, give aspirin. Perform CPR if trained, and stay with them until help arrives. Early response can save lives.