Heart failure is heart failure. Drowsiness in heart failure patients is caused by low blood pressure, etc. Not eating is caused by gastrointestinal stagnation, etc. Medication is usually needed. Heart failure because the heart muscle is weak, can not output enough blood, blood pressure becomes low, resulting in lack of blood supply to the brain, drowsiness. On the other hand, heart muscle weakness does not ensure proper circulation and blood stagnates. The blood supply to the gastrointestinal tract happens to be close to the blood vessels around the heart, which makes it easy for the gastrointestinal tract to stagnate, resulting in loss of appetite and not eating. Medications can be used, such as furosemide, spironolactone and other diuretics, which can be used to reduce water absorption and reduce the load on the heart; angiotensin-converting enzyme inhibitors such as captopril and ramipril, which are used to reduce ventricular remodeling. All of the above medications should be used under the supervision of a physician, and self-medication should be avoided. If the diagnosis of heart failure disease, it is recommended that early standardized treatment to reduce the adverse effects of the disease.