Heart failure happens when your heart can’t pump enough blood to meet your body’s needs. It doesn’t mean your heart has stopped working, but it means your cells aren’t getting the oxygen they need to keep your body healthy and functioning normally.
To compensate, your heart may enlarge, develop extra muscle mass or pump faster. Over time, this weakens your heart and worsens your health.
Lots of factors can contribute to heart failure, including heart disease, a heart attack, alcohol and drug abuse, high blood pressure and some chemotherapy medications. You’re also more likely to have heart failure if you’re male, over 65, diabetic, overweight or obese.