My 90 year old father with dementia no longer wants to live and has argued with caregivers about eating. When I ask him what’s wrong, he says, “I’m just waiting to go. I’m not interested in this program. All of my relatives are already gone, etc.” He sits in silence a lot of the time and must be roused to get out of bed. He doesn’t seem to enjoy anything any more and really gets blue in the winter months! Any suggestions or thoughts?