A glimpse into the mind of an ultra runner
It's often believed that ultramarathons are run with the legs. But the truth begins in our brains. It's in this invisible zone, long before the first step, that the line between giving up and perseverance is drawn. At the House of Ultra, Chloë Lanthier—athlete, author, and neuroscience expert—reminded us of this fundamental truth: ultramarathons aren't won against the mountain, but with it, by learning to tame our own minds.
The moment always arrives: muscles burn, joints protest, every breath becomes an effort. But then, another voice rises, stubborn, obstinate: the voice of the mind that refuses to listen. That's where the real work begins, this inner dialogue unique to extreme endurance. 
It all starts in the brain
“You can’t separate the mental from the physical because everything starts in the brain,” explained Chloë. These words resonate as a simple yet essential truth. Ultra running isn’t the sum of the body and the mind; it’s a system where each element influences the other.
Confidence can't be decreed. It isn't built sitting on a couch dreaming of feats of strength. It's born in repeated kilometers, in icy mornings when you venture out despite the rain, in endless climbs where every step demands an effort of will. Training forges a certainty: "I've done this before, I can do it again." As Chloë says, "Confidence isn't abstract. In training, you build confidence."
At the House of Ultra, his words took on a concrete form. The shared strategies were not limited to technical advice: they were invitations to practice, to experiment together, to cultivate a mindset that is learned like a technique, through repetition and transmission.
Plasticity as a secret weapon
The brain is malleable. "The more you repeat something, the more the brain reconfigures itself," Chloë reminded us. This plasticity gradually transforms our relationship to effort. Each difficult outing forges new neural connections, like a path that strengthens with repeated passage.
Training in extreme conditions—biting cold, scorching heat, breathtaking altitude—prepares far more than just the body. It accustoms the brain to functioning in discomfort. What once seemed insurmountable becomes manageable because it has already been experienced.
And what about stress? Rather than running from it, it becomes a strength. "During the race, it can push us forward," explained Chloë. We've all felt it: that surge of energy that carries us further than expected. But we must learn to recognize the difference between stress that galvanizes and stress that crushes us. It's through repetition, and thanks to the energy of a group, that this discernment is cultivated.
Passion as a lasting foundation
Beyond strategies, Chloë shared her deep conviction with us: "The most important thing is to have a passion and to love what you do." Without that, everything falls apart. Because ultra-running isn't a one-day event, but a long-term relationship with effort.
Passion transforms perception. Pain becomes information, discomfort becomes a terrain for exploration, the mountain becomes a partner rather than an adversary. It gives meaning to sacrifices: waking up at 5 a.m., weekends on the trails, carefully planned meals.
Chloë confided her greatest fear: getting injured and no longer being able to continue. Behind this fear lies a universal truth: what matters isn't the medal or the performance, but the possibility of enduring, of living this passion for a lifetime. This approach changes everything. Rather than enduring training, you savor it. Rather than counting the remaining kilometers, you appreciate the present. Chloë recounts her mountain outings like others talk about their vacations: with stars in their eyes.
Running, again and again
Chloë's words reminded us of what experience confirms: ultra-running is a school of patience, adaptability, and passion. Mental strength isn't an added bonus, but the very engine of our training. Perseverance isn't about gritting your teeth, but about learning to transform difficulty into fuel.
With each outing, each race, we rewrite our relationship with endurance. And it is in sharing these experiences that we truly learn to go further.