<s>[INST] What is Heart Failure? 
 [/INST] Heart failure doesn't mean that the heart has completely stopped working. Rather, the heart doesn't function as well as it should. Sometimes known as congestive heart failure (CHF), it is a chronic, progressive condition in which heart muscle becomes too weak to pump enough oxygen-rich blood to meet the body's needs. Source: ABBOTT. Link: https://www.abbott.com/corpnewsroom/healthy-heart/6-heart-failure-questions-answered.html. Field: Cardiovascular. Disease: Heart Failure </s>