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“Cough as a Warning Sign of Underlying Heart Conditions” Description: Identify and explain how certain heart problems (e.g., heart failure, mitral valve disease, pericarditis) can cause a persistent dry or productive cough, including mechanisms like pulmonary congestion, fluid buildup, or nerve irritation. Offer symptom checklists, when to seek medical help, and distinguishing factors from respiratory causes. heart problems that cause a cough