This is because when a family member is suffering from dementia, particularly when they have lost their memory and self-awareness, it can be hardest not on the patient themselves, but on the family members taking on the responsibility of caring for them.
原因是，當失智症患者發病，特別是喪失記憶和自我意識時，真正受苦的不是病人，而是負責照顧的家屬。