I stared at the screen in disbelief. My lung function had declined more than 20 percentage points. I was stunned. I had undergone hundreds of pulmonary function tests before, and even though I wasn’t feeling great, none had shocked me like this one. I knew I’d need antibiotics, but…
Mutations & Conversations
— Tré LaRosa

Tré LaRosa is a scientific project manager, patient advocate, and writer. He has cystic fibrosis (CF) and carries two copies of the F508del mutation. He’s been on Trikafta since 2019. He writes about science, living with CF, grief, family, and everything in between in an effort to get you thinking about what it means to be human. He lives in Arlington, Virginia with his fiancée Jessica and their two wonderful, lazy dogs, Duncan and Leo. He enjoys playing sports, being outdoors, and reading — and especially buying more books.
I recently watched a film that depicted a harrowing scene between the protagonist, a prodigious graduate student, and his physician. In the scene, they sit in a sterile, halogen-lit corridor as the physician shares the devastating news that the student has amyotrophic lateral sclerosis (ALS). Much like cystic…

The year is 1955, and a group of parents, including the late Doris Tulcin, decides to create an organization dedicated to improving care for children with cystic fibrosis (CF). That organization, the Cystic Fibrosis Foundation (CFF), continues to thrive today. The year is 1989, and Lap-Chee Tsui, Jack…
Ironically, I thought about the subject of this column — the importance of rest — a couple of weeks ago while running in Seattle, a city known for its frequent rainfall. I was preparing for the Virtual Marine Corps Marathon 10K (MCM10K), which was scheduled for the following day. I…
Cystic fibrosis (CF) has a way of stripping one’s agency and limiting control over circumstances and the future. It is difficult, isolating, and can lead to dark places. For me, advocacy has been a balm that tempers feelings of anxiety, hopelessness, and isolation. Over the years, I’ve served…
Artificial intelligence (AI) is just about everywhere right now, capturing the world’s attention and economic markets. Along with near-daily headlines about what AI promises to do for — or to — humanity, there’s also been some very promising advances in the use of AI in medicine. It seems that…
Throughout my life, I’ve felt comfortable self-disclosing to schools and employers that I have cystic fibrosis (CF). Self-disclosure — defined as “the sharing of personal information with others that they would not normally know or discover” — has allowed me to claim agency and decide what I want shared…
A few days ago marked what would have been my sister Alyssa’s 37th birthday. To pay homage to her this year, I’m reflecting on what it’s like to have cystic fibrosis (CF) myself as well as a sibling with CF. When people learn that individuals with CF are advised…
Hope is something I have often reflected on throughout my life. In fact, my first tattoo was of a Latin phrase commonly referenced in the cystic fibrosis (CF) world: “Dum spiro spero,” which means “While I breathe, I hope.” But my perception of that phrase has changed over…
The benefits of being in nature are well-documented. There are the physical benefits, such as improving blood pressure and immune activity. And then there are the mental benefits, with people spending time in nature seeing reduced rates of depression and anxiety and increased vigor. These findings don’t…
My friend Steve Silberman died a year ago on Aug. 29, 2024. I was familiar with Steve before he knew me. Steve had written a highly popular and applauded person-centric history of autism titled “NeuroTribes: The Legacy of Autism and the Future of Neurodiversity.” His writing, much like my…
I have been thinking a lot about aging lately. I think about it when I notice that it takes my dog, Duncan, a second longer to stand up after a nap; I think about it when I notice a gray hair in my beard, a privilege; I think about…
Your CF Community

Visit the Cystic Fibrosis News Today forums to connect with others in the CF community.
Recent Posts
- CF gene therapy 4D-710 shows signs of improving lung function in early trial December 18, 2025
- My late daughter is still teaching me resilience today December 17, 2025
- Small study finds GLP-1 drugs boost lung function in CF patients December 16, 2025
- Inhaled therapy ETD001 well tolerated in healthy volunteers December 15, 2025
- This winter solstice, I reflect on moving from darkness to light December 12, 2025