I'm no stranger to Alzheimer's and cancer. Several of my family has suffered and does suffer with them now. My dad, who has prostate cancer, was just diagnosed with Alzheimer's and epilepsy. My brother just diagnosed with cancer. I have aunts and uncles who had Alzheimer"s. It's very hard to go through for ALL involved. Stay strong and take it one day at a time. Prayers are going out to you and your dear wife.