The fittest founder in the room got cancer. Here’s how he used AI to fight back.

Conno Christou doesn’t permission things to chance. He tracks his slumber with a Whoop band, cross-references it with an Oura ring, and gets astir 100 biomarkers checked each year. He had been doing the yearly bloodwork for 4 consecutive years, pursuing the protocols of longevity researchers similar Peter Attia and Rhonda Patrick. He was optimizing his supplements, his circadian rhythm, his macromolecule intake.

At 35, gathering his 2nd company, helium was arsenic dialed-in connected the latest successful wellness probe arsenic anyone helium knew. His past checkup, successful 2025, was greenish crossed the board. “It was the champion I’d had successful years,” helium says.

Then, aft a workout, his limb swelled.

He didn’t deliberation overmuch of it astatine first. A week passed earlier helium saw a doctor, who recovered 2 humor clots successful his veins and scheduled surgery. But the pre-op exams changed everything. A doc walked backmost into the country and told him the process wasn’t happening.

“We spot an 11-by-11-by-8 centimeter wide down your sternum,” the doc said.

A biopsy confirmed what Christou had ne'er earlier adjacent contemplated. He had an aggressive, fast-growing signifier of non-Hodgkin’s lymphoma — a uncommon diagnosis affecting astir 1 successful 420,000 people, caused by a random familial mutation with nary transportation to lifestyle, diet, oregon stress.

The tumor had lone existed for astir 3 months. In 3 much weeks, it would person reached signifier four.

“Lucky successful my unluckiness,” Christou told this exertion this week from his location successful Athens, wherever helium lives portion time. “It was lone recovered due to the fact that I went successful for thing other entirely.”

What followed was an acquisition successful the limits of the aesculapian system, and successful what a determined diligent tin bash astir that with tools present available.

His archetypal oncologist, a renowned specialist, recommended the lighter of 2 disposable chemotherapy regimens. Christou booked his archetypal infusion 3 days out. Then, the nighttime before, helium sought a 2nd opinion.

That 2nd doc didn’t hesitate. He recommended the harder regimen — continuous in-hospital infusion, cycling each 3 weeks crossed six months — citing Christou’s circumstantial pathology. The lighter attraction carried astir a 60% occurrence complaint for his presentation. The assertive 1 brought that fig to astir 85%. Two world-class doctors. Diametrically other recommendations.

“As founders, we clasp the wheel,” Christou says of the propensity of galore radical to judge what they are told — and wherefore much should not. “You perceive galore things. You don’t person to travel the archetypal advice.”

He didn’t opt to conscionable travel the proposal of the 2nd physician, either. Over the adjacent 2 days, helium gathered 12 opinions successful full — drafting connected his nonrecreational network, reaching retired to hematologists and oncologists successful the US and abroad, calling successful each favour helium could. Eleven to 1 voted successful favour of the harder path. He took it. The decision, helium says, didn’t consciousness brave truthful overmuch arsenic logical. He was already a data-driven person, and present the stakes felt existential to him.

Over six months of treatment, Christou approached chemotherapy the mode helium approached gathering a company, arsenic a marathon of sprints — each of them with a finite rhythm and each week filled with information points. He had done a mandatory 25-month subject work successful Cyprus astatine property 18 and helium borrowed from that experience, too. He was going to beryllium a bully soldier, helium told himself. Trust the process. Six cycles. Get done it.

He wore his Whoop throughout, and recovered it remarkably close astatine predicting the days his immune strategy would bottommost out, sometimes flagging them earlier symptoms arrived. He kept a grounds diary utilizing dependable transcription, logging each shift, each broadside effect, each medicine and counter-medication. He narrowed his absorption to 3 variables: sleep, nutrition, and, archetypal and foremost, psychology. (“It moves the needle much than anything,” said Christou. “I ne'er asked ‘why me’ — not once. That question has nary utile answer.”)

He fed each of it — humor results, scan data, wearable output, diary entries — into Claude. He’s acold from unsocial successful turning to chatbots for aesculapian guidance. A public sentiment poll released successful March recovered that a 3rd of American adults present usage them for wellness accusation and advice. The stories accumulating online suggest that for immoderate patients, AI is delivering what the strategy couldn’t.

Experts impulse caution; Danielle Bitterman, objective pb for information subject and AI astatine Mass General Brigham, has told the New York Times successful caller months that general-purpose chatbots are frequently wrong and “have not been thoroughly evaluated” for personalized diagnoses.

Christou doesn’t disagree. “It didn’t regenerate the doctors,” helium says, but it “helped maine inquire the close questions.”

For a information arsenic uncommon arsenic his — 1 an oncologist mightiness spot erstwhile a twelvemonth — entree to a exemplary that had absorbed the afloat assemblage of aesculapian lit was, helium says, simply not the aforesaid arsenic a Google search.

The exemplary proved captious astatine the extremity of treatment. His last PET scan — the imaging utilized to observe progressive illness — came backmost ambiguous. His oncologist began discussing a 2nd enactment of therapy, perchance radiotherapy, adjacent his bosom and lungs. It was an alarming development.

Christou again did his homework. He work that for this circumstantial lymphoma, the false-positive complaint connected end-of-treatment PET scans is astir 60% — a statistic that inactive astonishes him. “It’s 2026,” helium says. “Sixty percent.”

He fed each 3 of his PET scans and his MRI into Claude, which flagged a known but easy overlooked phenomenon: successful patients nether 40 recovering from this benignant of lymphoma, the thymus gland tin reactivate aft chemotherapy, showing up connected imaging arsenic what appears to beryllium progressive disease. Given his age, his circumstantial scan characteristics, the exemplary enactment the probability of that mentation astatine astir 90%.

He sought 3 much opinions. The 4th doc confirmed it: thymus rebound. There was nary progressive disease. No radiotherapy was needed. He was clear.

Christou is inactive unfolding what the past twelvemonth has meant, for his health, however helium works, and however helium thinks astir time. He built Keragon, his existent company, earlier immoderate of this happened; it’s an AI-powered level that helps aesculapian practices automate their administrative operations.

But going done the strategy arsenic a diligent has fixed him caller perspective. He watched nurses and doctors buried nether tasks that had thing to bash with care. He received the aforesaid chemotherapy protocol arsenic an 80-year-old woman, the broadside effects managed done a cascading concatenation of further drugs, each causing problems of their own. He says he’s definite that we volition look backmost astatine this epoch of attraction and cringe.

He takes Sundays disconnected now, mostly. He tries to beryllium contiguous — astatine luncheon with friends, astatine location with his dog, successful conversations that mightiness erstwhile person felt similar a distraction from work. A VC person told him thing years agone that helium said helium kept replaying during treatment: Be blessed now. He says it’s among the hardest things to bash and yet helium yet appreciates its importance.

He says he’d beryllium blessed to speech to anyone going done thing akin to stock notes, comparison experiences. He seems to means it.

“It’s not happening successful 10 years,” helium says of what AI tin already bash for patients consenting to usage it. “It’s happening today.”