Every rule you've followed governs what goes into your body. Almost none of them examine what surrounds it. Diligence was never the problem: scope was.

Your protocol may not be the problem – or not the whole problem. Even a well-designed one can't outpace a tap that's still running.

An allergy test asks whether your immune system reacts to mould. It doesn't ask whether your building is making you unwell.

Standard blood panels are designed to find disease, not the environmental exposures that keep a body unwell. If your tests are normal but you aren't, your home may be worth investigating.

Before I was a naturopath and building biologist, I was the patient with confusing symptoms and a pile of normal test results. This is what I learned, and why it matters for you.