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Woman Who Can’t Feel Pain Eats One of the Hottest Chillies

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A 71-year-old grandmother from Inverness sat down on ITV’s This Morning sofa and, on live television, ate one of the hottest chillies on the planet without so much as a flinch.

Jo Cameron isn’t hiding a trick. She has a genetic condition so rare that researchers at University College London had only just identified it the month before her appearance, in a report published in March 2019. Sitting alongside resident doctor Dr Zoe Williams for the segment titled “Woman Who Can’t Feel Pain Eats One of the Hottest Chillies,” Cameron walked viewers through a life spent almost entirely free of physical pain — and then proved it on camera.

• UCL researchers traced Cameron’s condition to a mutation in a newly discovered gene dubbed FAAH-OUT, combined with a mutation in the FAAH gene, a combination that makes her virtually immune to physical pain, blocks fear and anxiety, and speeds up tissue healing.
• Cameron has been through childbirth, broken bones, severe cuts, and joint surgeries without ever needing a painkiller, and once only realised she’d burned herself because she smelled her own singed flesh.
• On the show, she ate one of the world’s hottest chillies with no visible reaction, despite capsaicin binding to the same TRPV1 pain receptors that make that pepper unbearable for almost everyone else.

Medical Discovery of Patient Case

Cameron’s condition wasn’t diagnosed until an orthopedic surgeon noticed something odd after major hip and hand surgeries: she reported no pain whatsoever during recovery. That observation is what pulled UCL’s pain geneticists into her case. What they found wasn’t a fluke or a one-off tolerance — it was a genetic profile nobody had documented before, built around the FAAH-OUT gene working in tandem with a mutated FAAH gene.

For most of her life, Cameron simply assumed she was tougher than everyone else. She’d cut herself, break bones, go through labour, and come out the other side without reaching for so much as a paracetamol. It wasn’t until doctors started asking questions that the scale of what was happening in her nervous system became clear.

The Chilli Test

The This Morning segment turned Cameron’s condition into something viewers could see rather than just hear described. Producers handed her one of the hottest chillies in the world — the kind that sends most people reaching for milk, water, and sometimes an ambulance — and she ate it on air with no burning, no watering eyes, no distress.

That reaction is exactly what makes her case scientifically interesting. Capsaicin, the compound that makes chillies hot, works by binding to TRPV1 receptors, the same nerve pathway that registers heat and thermal pain. In someone with a typical nervous system, that binding triggers an intense burning sensation. In Cameron, the signal simply doesn’t register as pain.

She ate the world’s hottest chilli live on air and showed no pain, no distress, no reaction at all.

Implications for Chronic Pain Treatment

Beyond the novelty of the on-air demonstration, UCL’s researchers framed Cameron’s biology as a potential blueprint for future medicine. A mutation that blocks pain signalling this completely, without the sedation or addiction risk that comes with opioids, is exactly the kind of mechanism drugmakers want to reverse-engineer into a pill.

Her case sits alongside a small but growing catalogue of extraordinary human biology that researchers use to work backward toward treatments — not unlike how Robert Wadlow’s extreme growth once gave endocrinologists a real-world case study in growth hormone disorders. The hope with Cameron’s FAAH-OUT mutation is narrower and more practical: a non-addictive painkiller modeled on what her body already does naturally.

Cameron herself seemed almost bemused by the fuss on the sofa that day — to her, not feeling a chilli burn her mouth wasn’t a party trick, it was just Tuesday. Dr Zoe Williams closed the segment noting that UCL’s team was continuing to study her genetics, with the FAAH-OUT discovery only a month old at the time of the broadcast and still very much a work in progress for anyone hoping to turn it into a treatment.