When a person endures sudden shock or extreme stress, the adrenal glands release adrenaline. That provides an extra boost of energy and chemicals that temporarily mask physical pain. This enables the "fight or flight" reflex so a person under attack will be essentially turbo-charged for a short period of time. Usually, releases of adrenaline are short-term; the threat passes, and the person calms down and things return to normal.
The problem is that grief, such as that caused by the loss of a loved one, can result in a prolonged release of adrenaline, which causes damage to the heart. Many doctors and scientists now think that this prolonged release of adrenaline and the damage to the heart is causes can lead to heart failure, especially in older persons, who are then said to have "died of a broken heart."
You can't, it's an expression.
Emo heart means that have an emotional heart that can be easily broken or is already broken.
A broken heart.
It means a broken heart in which more than love,there is hatred.
she doesnt want to get her heart broken
devestating means to be heart broken or angry
Of a broken heart because Romeo is banished.
She is purported to have died of a broken heart.