Each week at Venturis Clinic we review new research on Long COVID and post-viral illness and translate it into plain English. Here’s what caught our attention this week — and what it might mean for people living with these conditions here in Oklahoma.
Your fatigue is showing up in the lab data
A new 2026 study in Frontiers in Immunology took a deep, multi-layered look at the biology of people with Long COVID — and found consistent, measurable problems in the mitochondria, the tiny “power plants” inside our cells. The researchers found that the machinery cells use to make energy (a process called oxidative phosphorylation) is running suppressed in Long COVID, alongside ongoing immune system dysregulation. In plain English: when a patient says “my battery just doesn’t charge anymore,” this research suggests that’s close to literally true at the cellular level.
This adds to a growing body of evidence — including a recent peer-reviewed meta-analysis linking immune progression to Long COVID with mitochondrial gene transcription — that Long COVID fatigue is biological. Not deconditioning. Not anxiety. Not “in your head.” It also helps explain why pushing through often backfires: the energy system itself is struggling.
Light therapy for brain fog gets a real controlled trial
Photobiomodulation — therapeutic red and near-infrared light — has been discussed in the Long COVID community for years, but rigorous trials have been scarce. Now a pilot randomized, double-blind, sham-controlled trial published in eClinicalMedicine (a Lancet journal) has tested transcranial photobiomodulation for cognitive dysfunction (“brain fog”) in post-COVID condition. Pilot trials are small by design and results need replication in larger studies, but properly controlled research in this space is exactly what patients have been asking for.
What about the German apheresis clinics?
Many patients ask about therapeutic apheresis — “blood filtering” approaches used at some European clinics. Two useful reads this week: a single-center pilot study of therapeutic apheresis in severe post-COVID syndrome, and an accessible overview from Health Rising covering immunoadsorption, H.E.L.P. apheresis, and the BC007 story. The honest summary: early data is intriguing, larger controlled trials are still needed, and anyone considering travel abroad for these procedures deserves a balanced picture first.
Source: Plasmapheresis possibilities for ME/CFS and Long COVID (Health Rising)
A story we hear often
The following is a fictional, composite patient created for education — not a real person.
“Karen,” 52, is a schoolteacher from the OKC metro. Before COVID she walked three miles a day. Two years after her infection, she can teach a half day — then spends the evening flat on the couch with a racing heart, brain fog, and legs that feel like concrete. Her standard labs? All normal. She’s been told to exercise more, stress less, and consider an antidepressant.
A case like Karen’s teaches three things. First, “normal labs” usually means normal standard labs — routine panels weren’t designed to catch autonomic nervous system dysfunction, cellular energy problems, or the microclotting researchers are studying in Long COVID. Second, a racing heart on standing is a clue worth taking seriously — that pattern has a name (dysautonomia, including POTS) and there are simple ways to begin evaluating it. Third, the crash after a half day of activity is a hallmark pattern called post-exertional malaise, and recognizing it changes how pacing and activity are approached.
The takeaway isn’t that every Karen has the same answers. It’s that a story like hers deserves a workup that matches what the research actually says about this illness — not a shrug.
This article is educational only and is not medical advice. It does not describe any real patient, and reading research summaries is not a substitute for individualized care from a qualified clinician.
Venturis Clinic is an integrative and regenerative medicine clinic in Oklahoma City that works with patients navigating Long COVID and other complex chronic conditions. If you’d like to talk with our team, you can schedule a new-patient pre-consult or call/text us at 405-848-7246.
