A patient with a real heart attack should seek medical attention at the earliest. In the mean time he/she should chew a tablet of Aspirin. This simple and a very scientific measure reduces mortality by 23%. Trying to do the gimmicks mentioned by you from the forwarded message has, if at all, a serious
detrimental effect.
Time is muscle and going to a centre where the blocked artery which is responsible for the attack opened is the most logical way of minimising the insult. This can be achieved by intravenous injection or angioplasty. Earlier
you get it, the better it is.