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On One Condition

On One Condition

By: Sylvain Berthelot
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Summary

On One Condition is a podcast for anyone who wants to learn about a specific health condition. Hear from people who live with a condition, how it affects them and how they manage it. Sylvain Berthelot has worked in the clinical trial industry for over a decade. He is naturally curious and passionate about how the body functions. Through his interviews, he aims to give fellow human beings a voice, spreading the word about the multitude of medical conditions that affect us.

Hygiene & Healthy Living Physical Illness & Disease
Episodes
  • Episode 86: Melissa Vaught - PURA Syndrome
    May 13 2026

    Melissa it the mother of Taylor, who lives with Pura Syndrome, an ultra-rare neurodevelopmental condition that went undiagnosed for 23 years.

    Melissa shares the emotional weight of living for decades without answers, the moment of finally receiving a diagnosis, and how uncertainty transformed into purpose. This conversation is a reminder that rare disease stories are not only about struggle — they are about resilience, discovery, community, and hope. Melissa speaks beautifully about seeing beyond limitations, recognising Taylor’s intelligence and individuality, and finding meaning through her work with the Pura Syndrome Foundation.

    It is a moving episode about motherhood, purpose, and the extraordinary strength that grows from love.

    The song that Melissa chose is Blessings by Laura Story.

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    29 mins
  • Episode 85: Ronna Boles - Scleroderma
    Apr 29 2026

    Ronna lives with diffuse systemic scleroderma, a rare and complex autoimmune condition that affects the skin and vital organs like the lungs, heart, and digestive system. What began as years of unexplained symptoms evolved into a life-altering diagnosis, bringing shock, fear, and uncertainty, especially as a young mother.

    Ronna speaks candidly about the emotional weight of diagnosis, the reality of living with fatigue and invisible illness, and the difficult balance between protecting her health and continuing to participate in life. Her story highlights the importance of self-advocacy, mental health support, and the power of community, particularly through social media and patient groups.

    Despite the challenges, there is resilience at the heart of Ronna’s journey. From signing up for a race she once feared, to redefining what participation in life looks like, she demonstrates a powerful determination to keep moving forward – not just for herself, but for her family. Her story is a reminder that chronic illness is often unseen, but never unfelt, and that empathy and understanding can make a profound difference.

    The song Ronna chose is I Wanna Dance With Somebody by Whitney Houston.

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    35 mins
  • Episode 84: Sierra Domb - Visual Snow Syndrome
    Apr 15 2026

    When Sierra was diagnosed with Visual Snow Syndrome (VSS), little was known about this condition, and it was extremely difficult for her to get a diagnosis. By founding the Visual Snow Initiative, Sierra moved mountains to increase awareness and help bring recognition, research, and support to millions worldwide.

    VSS is a neurological condition that affects how the brain processes visual and sensory information. Sierra describes the sudden and terrifying onset of her symptoms at 21, when her vision changed permanently in an instant. She speaks candidly about the relentless nature of her condition—constant visual disturbances, sensory overload, and insomnia—and how these symptoms disrupted every aspect of her life. Yet, beyond the physical impact, it is the emotional toll of being dismissed, misdiagnosed, and left without answers that stands out most.

    What begins as a conversation about an often-overlooked condition quickly unfolds into a powerful story of resilience, medical trauma, and advocacy. Sierra’s journey reflects a broader issue within healthcare: the difficulty patients face when their condition doesn’t fit established frameworks.

    Throughout the episode, Sierra offers a compassionate and honest perspective on living with chronic illness. She reminds us that resilience is often not a choice, but something we are forced to build, and that even small victories matter. Her story is both heartbreaking and inspiring, shining a light on the unseen struggles many people carry and the quiet strength it takes to keep going.

    The song Sierra chose is Legend by Chronixx.

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    53 mins
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