Early 60s. She was prone to distrusting authority. She believed the youtube doctors who said colonoscopies aren't worth the risk, so she delayed getting one for years. Eventually she had to because nobody could explain her symptoms. At that point she was 57. If she hadn't waited she may have been in time to treat it successfully. After the diagnosis she told her sister (5 years younger) who then went to get a colonoscopy. They found polyps that would have become cancer, but because it was early it was trivial to remove them.