Now I know why I didn't go!

I to pray for a cure, I don't have it my husband does, I am his primary care giver he is 66 I am 56. I had a closed head injury 19 years ago and know the possibility is great for me to develop this disease because of that. Already been there with loss of memory for two years and still have short term memory loss. I want to know if I can be tested and if something can be done to prevent it. I also question the link to his exposure to agent orange in Vietnam and know that it has caused many of his other illness. He severe PAD and lost both legs, the government knows what this chemical has done but will not release all the information. Where do you go and who do you talk to? Connie