At the age of 100, Layne Horwich noticed a lump on her breast while preparing for bed. Trusting her instincts, she informed her family, and soon after, she was undergoing a mammogram that confirmed a diagnosis of stage one breast cancer. Despite her age, Horwich decided without hesitation that she would pursue treatment. "I wanted it out," she said, recalling her reaction. She expressed relief that it wasn’t a stroke or a heart attack—conditions that might ha