I meant to post something more constructive last night but had to leave quickly.... 

I believe it is helpful to try to do some cardiovascular exercise first thing in the morning, before you've eaten anything, since then the body will more quickly have to turn to using fat as it's energy source. 

Nope; I still don't agree!  There is 100% chance of an individual suffering a cardiac arrest (at death) but not of a heart attack.  I don't think I'm missing some cunning subtlety in the earlier posts...