Blog
Research-backed articles on visual contrast sensitivity, mold, Lyme, and the science behind the screen.
shoemaker protocol
Eleven steps, in order, without the jargon — what the Shoemaker protocol actually does and why the sequence matters.
mold exposure
Mold exposure rarely looks like one clear symptom. It looks like a cluster of complaints across multiple systems — and that's the tell.
online vcs test
A browser can't replace a FACT chart in a clinic. But used correctly, an online VCS test still tells you something useful — here's what.
biotoxin illness
Biotoxin illness doesn't have a single blood test. Here's how a rational screening process works — exposure, symptoms, then biology.
cirs testing
The 'CIRS test' people search for isn't a single test. It's a set of criteria — and understanding the steps saves you time and money.
mold toxicity
Mold toxicity testing is a maze of lab panels, dubious at-home kits, and environmental sampling. Here's how to think about it without the snake oil.
visual contrast sensitivity
The 20/20 chart measures what you can read. Contrast sensitivity measures what you can almost read — and it's the one that tends to drop first.
vcs test
A plain-English look at visual contrast sensitivity — what the test reads, what it can't tell you, and why a 'pass' means more than a 'fail.'