Do the doctors know what causes a heart attack?

Does the heart pump blood or is this idea a total misunderstanding?
Again let us learn the truth based on clear evidence, instead of following what is believed to be true.
Even the so called "heart specialists" have been lied to and most of them do not know this yet.
Heart surgeons, like all of us throughout the world have been misled and often practice with a false understanding of how things really work!
Is the heart a pump? Let us take a look at some intersting information. Watch here
It would seem that the human body is electrical and blood is moved around using a differential charge between capillaries and vessels.
Let us learn the real reason for heart attacks then shall we. Watch here
Let us now learn about the phases of water, we are taught that there are only three phases of water. Liquid, Ice and steam, is this true or is there another phase? The fourth phase of water is refered to as EZ (ezee water) and is more like a gel. Watch here