From Wheezing at 12 to Racing the World's Best

A ceiling he couldn't see past

James is not someone who accepts limitations quietly. Now 50, he has spent his adult life as a serious endurance athlete: cycling, racing, training with the kind of focus that most people reserve for their careers. He tracked his power output. He studied his metrics. He did everything right.

And still, every time the intensity climbed, the breathing would collapse.

“I had constant fear and frustration," he says. “I tried to moderate it. I tried tactics and strategies. No one ever really had an answer."

He saw a pulmonologist. The response was telling. “He said, ‘James, most people who walk into my office have trouble walking into my office. They don't have trouble breathing at high intensity.'" Exercise-induced breathing dysfunction existed in a kind of medical blind spot - too mild for clinical intervention, too significant to ignore if performance was what you were after.

He also worked with a breathing coach for several months, exploring techniques aimed at retraining his respiratory patterns under load. The sessions offered some awareness and marginal refinement, but never addressed the underlying dysfunction. When the intensity spiked, the ceiling held.

So James adapted. He built a ceiling and learned to live beneath it.

His best ranking on Zwift, the global competitive cycling platform with millions of registered riders, sat around 1,000. Not bad. But James knew, in the way serious athletes know things about their own bodies, that something was being left on the table.

The conversation that changed things

James didn't come to L Max through an ad or a search result. He came through a conversation, a chance to speak directly with the science behind the product before committing to trying it.

“That conversation was super helpful," he says. “The fact that I got a chance to speak to someone and understand what was actually happening, that it's a therapeutic, not a drug, that opened the door for me."

Within weeks of starting L Max, something shifted.

The hard intervals that used to send him into shallow, wheezing, dysfunctional breathing started to feel different. The breathing stayed deeper. More rhythmic. More controlled. And critically, the effort stopped feeling as hard.

“Those hard workouts just don't feel as hard anymore," James says. “Because the breathing is more deep and rhythmic. Not shallow and dysfunctional. The intervals are the same. The lungs are different."

The numbers don't lie

James is the kind of person who tracks everything. So when the improvements came, he measured them.

His one-to-ten minute power efforts, the window where his breathing had always broken down first, began to climb. His ability to sustain what he should have been able to sustain, for longer, finally became real.

And then the Zwift rankings started to move.

From around 1,000. To 500. To 200. To where he sits now: top 100 globally, 15th in the world in the 50 to 59 age category, and the second-ranked rider in the United Kingdom.

He has changed his Zwift display name to reflect the journey: James Better Lungs, BeneticHealth.com. Every time he gives another rider a thumbs-up mid-race, his name appears on their screen. A quiet advertisement, cycling at 400 watts through the virtual Alps.

What optimal actually looks like

James has a mental image he returns to when he thinks about lung function and performance. It comes from watching the Tour de France.

In the mountain stages, the legendary climbs in the Alps and the Pyrenees, the domestiques set a brutal pace at the front of the peloton, holding 400, 450, sometimes 500 watts until their legs lock up with lactic acid. You can watch it happen in real time: a smooth pedal stroke dissolving into a grinding, mechanical turnover as the muscles give out.

But their breathing? Fine.

“Those guys have such great respiratory systems," James says. “The limit is their muscles and their legs, not their heart, not their lungs. But if your lungs are what's holding you back — if that's your ceiling instead — then L Max is your answer."

It is, he notes, a powerful reframe for anyone who has spent years assuming their performance ceiling was fitness, when it was actually airflow.

Integral, not optional

James doesn't think of L Max as a supplement in the traditional sense. It has become infrastructure.

“I can't imagine not having it," he says. “I can't see that I'll stop doing this kind of training, and I can't imagine training the way I want to without it."

He is 50 years old. He is the second-best cyclist in his age group in the United Kingdom. He is racing people half his age on a global platform and winning.

And somewhere in the back of his mind, he is thinking about the 12-year-old who fell off the front of that pack in New Zealand, and what might have been possible if he had found an answer sooner.

“I just think about what I could have done in my twenties," he says. “But I'm just excited for where it's taken me now."