<span>I think you may be explaining Myocardial ischemia.
This occurs when the blood going to your is reduced or stopped which prevents oxygen from traveling into your heart. Whenever your heart stops getting blood the mussels begin to deteriorate. This normally happens from coronary arteries aka blockages in your arteries.
The correct answer to the question above would be "the neutral person." In negotiation, the mediator is the one who assists both parties who are in a form of alternative dispute resolution and negotiate a settlement.