I read about a study that said heart failure patients may be at a high risk for something called anergia.  Can you explain what it is and how heart failure may contribute to it?
D000203:Activities of Daily Living; D006333:Heart Failure / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D018476:Hypokinesia / Q000209:etiology* / Q000503:physiopathology; D011788:Quality of Life; D012307:Risk Factors