You see the heart symbolizes so much in both our society and various veins of creative writing. The human heart symbolizes; life, love, emotional anguish, and even endurance (e.g. the durability of the human heart is notoriously difficult to burn/destroy completely).
So an individual that has gone through a lot of emotional and or romantic pain would naturally choose to injure their chest/heart area of the body in order to send a message to the people they left behind, perhaps only one person in particular. Or to manifest a clue to other people about how another individual may have hurt them and kept it a secret from everyone else.
A quite unspoken about method though it seems to me,
one of the most romantic & painfull,
Technically it seems one of the most quickest & effective if one is successful with piercing through their heart, where talking within 2 minutes with no possible sub-concious interference as you might have with the helium method etc,
using this method of death I would probably choose my Tanto KA-BAR or of falling onto my beautiful Paul Chen Hanwei Shinobi Ninjato ,Â letting gravity do most of the work
does anyone know of people who have tried or have been successful with this method? what are your opinions of the dagger through the heart?
Suicide through Stabbing, 1898 post mortem article