I don't mean for my question to sound harsh or morbid, so please bear with me. My husband, Bill, is only 73, but has later stage Alzheimer's and I will care for him at home as long as I am able. Bill needs help with everything now. He's ambulatory, but needs to be encouraged to get up. He shuffles around when he's up and is a little unstable, but I stay close or he uses his walker. He's incontinent and needs help with all ADLs. He still seems to swallow OK, but needs cuing to eat. He speaks very little and when he does, cannot form a sentence or makes up words. Physically, he seems to be in relatively good shape - so what actually causes death? To be clear, I don't think he's anywhere near the end, but I just don't know what to expect down the road and was hoping someone could shed some light.