My mother was a perfectly healthy woman, a non-smoker without any cancer in her family tree. In 2007, I went through a major depression which made her very very sad. She is a very sensitive women, very susceptable to issues dealing with me as I'm her only child. I was telling her everyday that I was feeling suicidal. 2008- she gets cancer. I'm trying avoid the thought that I might be the reason for her cancer but it's always in the back of my mind. I blame myself for it and putting myself into such intense regret. What do you think about stress and cancer?