A heart attack happens when the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked and the heart can’t get oxygen.
A heart attack is a urgent condition where the people are really helpless, and the heart rate begins to beat improperly.In this situation you have only 10 seconds to react before they lose consciousness.
This is what you should do in case of heart attack:
First you should start to cough because coughing can provide a great help. Namely, you should cough strong and deep as you need to cough out some secretion and you should breathe in deeply.
Deep breaths will help you intake more oxygen, and coughing will cause a pressure on the heart and maintain circulation and a normal heart beat.
You should repeated the breathing and coughing every two seconds continuously until you get help by a medical person or the ambulance.
Watch this video and see what exactly you should do: