Lisa Marie Conklin is a Baltimore-based writer and writes regularly about pets and home improvement for Reader's Digest. Her work has also been published in The Healthy, HealthiNation, The Family Handyman, Taste of Home, and, among others. She's also a certified personal trainer and walking coach for a local senior center.
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These Are the 4 Stages of Heart Failure

Heart failure is very common—and it just doesn't happen to older people. About 6.2 million Americans over the age of 20 have it. These are the stages of heart failure and what you should know about them.