From the Irish enclaves of Butte, Montana to a chicken coop on Maryland’s Eastern Shore, Marybeth Shea guides us along little-known paths of Irish migration and through the little understood profession of technical communications. irishstewpodcast.com/Marybet…

🧬 "Qi" Isn't a Biomarker. It's the Relationship Between Immune and Mitochondrial Biomarkers. 🧬 This may be the most important thing I ever post. My biggest contribution to modern medicine may simply be mainstreaming the Chinese medicine concept of "Zheng Qi": mitochondrial function and immune competence are not two separate systems. They are directly coupled and should be studied that way. We already know this biologically. MAVS - mitochondrial antiviral signaling protein - is literally anchored to the outer mitochondrial membrane and helps launch the cell's antiviral response; it's the only protein downstream of RIG-I that bridges antiviral immunity and energy metabolism. Immune cells also change how they make energy depending on what they need to do - effector cells run on glycolysis, regulatory and memory cells on OXPHOS - while chronic immune activation damages mitochondrial function in return, through PD-1/CTLA-4 signalling that causes depolarization, defective OXPHOS, and ROS-driven mtDNA damage. And when mitochondria fail, they leak mtDNA into the cytosol, where it acts as a danger signal that drives chronic inflammation. The literature names it explicitly: "The relationship between mitochondrial dysfunction and immune activation has been recognized as a bidirectional feedback loop." In other words: energy production shapes immune competence, and immune activity shapes energy production. Chinese medicine has had a systems-level concept for this relationship for centuries. Zheng Qi describes the body's integrated capacity to make energy, defend itself, clear pathogens, repair damage, and recover. This matters enormously for Long Covid, ME, and other chronic energy-limiting or immunological illnesses, where mitochondrial and immune abnormalities repeatedly appear together. But it matters far beyond those - the same coupled system is now documented in Parkinson's disease and neurodegeneration, in autoimmune rheumatic disease (RA, SLE, systemic sclerosis, where mitochondrial dysfunction and glycolytic bias converge as a core mechanism of chronic inflammation), and in cancer and metabolic disease, where immunometabolism is the shared substrate. This isn't a niche observation about fatigue. It's a principle that runs through all chronic illness. Qi isn't a biomarker. It's the relationship between the biomarkers. If modern medicine takes one thing from me and Chinese medicine, I hope it is this: stop studying energy failure and immune failure as separate problems. Study the system that couples them - Qi. 😷 🧬 Mitochondrial–Immune Bidirectional Feedback Loop (ME/CFS) 10.3390/biom15030357 (Biomolecules 2025 - mitochondrial and immune dysfunction in ME/CFS) 🧬 Mitochondria as Master Regulators / Cell Danger Response 10.1186/s12967-026-08319-3 (J Transl Med 2026 - mitochondria as orchestrators of metabolic and immune reprogramming) 🧬 Mitochondrial ROS & MAVS in Antiviral Innate Immunity 10.3390/biom15101339 (Biomolecules 2025 - mtROS, MAVS pathway, mtDNA leakage) 🧬 Neurodegeneration (Parkinson's / Alzheimer's) 10.1021/acsomega.5c10397 (ACS Omega 2026 - neuroinflammation and oxidative stress in PD, AD, and COVID-19) 🧬 Autoimmune Rheumatic Disease (RA, SLE, SSc) 10.20944/preprints202512.2693.v1 (Preprints 2025 - mitochondrial dysfunction and glycolytic bias in autoimmune rheumatic disease)

BREAKING NEWS The Norwegian Nobel Committee has decided to award the 2026 #NobelPeacePrize to Navanethem “Navi” Pillay for her efforts to promote peace and international law. #NobelPrize

A personal long COVID update: I'm doing really well! Five years ago, I was largely confined to bed. These days, I'm more active, even traveling with my family. I still respect my limits, but the difference is remarkable. I feel great, and I’m enjoying every minute of it.

I will also accept "Death Lab for Putie" as a correct answer here.