Lisa Bonchek Adams is a 40-year-old mother-of-three. She has breast cancer, and it has spread to her bones.
She writes about her condition, her treatment and her feelings - about what is now a terminal illness - on a blog and on Twitter, where she has several thousand followers and has tweeted more than 166,000 times.
Ms Adams, an American, has found herself the focus of critical articles in national newspapers in two countries - thrusting her into the centre of a debate about how we treat and talk about cancer.
The first article, which appeared in The Guardian, questioned "the ethics of tweeting a terminal illness". The piece, by Emma Gilbey Keller asked: "Should there be boundaries in this kind of experience? Is there such a thing as TMI [too much information]?" It has been removed from the paper's website, amid an internal investigation.
The second piece, by Ms Keller's husband, the former New York Times executive editor Bill Keller, contrasted Ms Adams, who has tried therapies and enrolled on trials of new drugs in a bid to slow the progress of her disease, to the writer's father-in-law, who died from cancer in a British hospital in 2012, after being "offered the option of being unplugged from everything except painkillers and allowed to slip peacefully from life".