A 35-year-old founder named Conno Christou, with near-perfect biomarkers and four consecutive years of optimised bloodwork, discovered a tumour the size of a fist behind his sternum by accident after a swollen arm led to a clot diagnosis and a pre-operative scan revealing an 11-by-11-by-8 centimetre mass. The pathology was an aggressive non-Hodgkin’s lymphoma affecting roughly one in 420,000 people, and within three weeks it would have reached stage four. After the first oncologist recommended a lighter chemotherapy regimen, a second recommended a harder one citing roughly 60% versus 85% success rates. Christou gathered ten more opinions from haematologists and oncologists across the US and Europe, resulting in an 11 to 1 tally in favour of the aggressive protocol, which he took. Throughout treatment, he fed his blood panels, scan data, wearable output, and a voice-transcribed symptom journal into Anthropic’s Claude. A KFF tracking poll published in March found that about a third of US adults now turn to AI chatbots for health information and advice, though clinical experts warn against over-reliance. Christou described the tool as something that helped him ask better questions rather than replace his physicians.