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Having heart failure, also known as congestive heart failure or CHF, doesn't mean that your heart has stopped. It simply means that your heart doesn't work as well as it should. Heart failure is a

Chatting before a meeting on Jan. 23, 2018, Marilyn, 78, suddenly thought, "I don't feel well. I feel dizzy." Then she fell back in her chair and onto the floor. The Scottsdale resident was in full