i hope this is true and will indeed save yourself if you are having a heart attack (from my "the Worst-Case Scenario Daily Survival Calendar 2008):

1. Chew Aspirin - Chew and sallow one 325-mg aspirin tablet, or four 81-mg baby aspirins.  Aspirin will not stop the heart attack, but it will prevent blood-clotting cells from adding to the blockage.

2. Alert others.

3. Decrease the heart’s oxygen consumpution - think calming thoughts and say quietly "heart-beat" each second to slow your heart rate.

4. Increase oxygen delivery to the heart - lie down and elevate your legs. Open the windows. If you have access to an oxygen tank, place the nasal cannula under your nose, and turn the knob to 4 liters or until you feel air.

5. Perform cough-CPR - breathe in through your nose, then cough every three seconds.

6. do not consume food or water - food or water will complicate treatment to unclog your arteries.