This is by far the Best video to understand what is Heart Attack, its Symptoms and Treatment
The 3D medical animation shows the coronary vessels in the heart
and the different ways they may become blocked
After you watch it do share it with your family and friends.
For those who cannot watch youtube video here is FB link:
https://www.facebook.com/video.php?v=758373054200168&pnref=story
a good vedio