Task: Question Answering
Input (English): Context: Parents of 48 children ( 31 boys , 17 girls ) were interviewed . The main distressing symptoms were fatigue , pain , loss of appetite , and dyspnoea according to the parents . While parents perceived pain and constipation to have been treated successfully , loss of appetite and anxiety were not treated effectively . 
Question: Why has it been difficult to improve and treat the symptoms of loss of appetite and anxiety ?
Output (English): Loss of appetite and anxiety are closely tied to mental health issues and can not be fixed by way of medication as easily as the other symptoms , it takes much longer to overcome issues caused by psychology.