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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.
Chest pain is discomfort and/or soreness in or around the chest. In general, chest pain can be divided into heart-related chest pain (cardiac chest pain) and chest pain that is not from a heart condition (non-cardiac chest pain).