![[Doctor holding a heart]](http://cdn1.medicalnewstoday.com/content/images/articles/316/316081/doctor-holding-a-heart.jpg)
BMI and exercise influence heart failure subtypes differently, the new study shows.
When the heart is no longer able to pump enough blood to meet the body's oxygen demands, it is referred to as heart failure - a chronic and progressive condition.
An estimated 5.7 million adults in the United States have heart failure. In fact, heart failure was responsible for 1 in 9 deaths in the U.S.