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So back to your question: 1  Your chest hurts when you're emotionally sad because your brain processes physical and social pain in the same brain regions (dACC and AI) (the affective aspects of the pain). The fact that both pains overlap means the factors that decrease physical pain also decrease emotional pain.
It hurts when you're really sad or depressed. There's a reason why it's called a heartbreak. The extreme sadness actually causes the chest to ache with symptoms similar to a heart attack.t hurts when you're really sad or depressed. There's a reason why it's called a heartbreak. The extreme sadness actually causes the chest to ache with symptoms similar to a heart attack.