The document describes what to do if you experience chest pain while driving alone and think you may be having a heart attack. It recommends coughing vigorously every 2 seconds to keep blood circulating and help regain a normal heart rhythm until help arrives or the pain subsides. Deep breaths before each cough get oxygen into the lungs while coughing squeezes the heart. This technique can help heart attack victims reach the hospital. The document urges sharing this information to help save others' lives.