You hit 40 and the floor moved. Sleep got worse. Mood swings that aren't yours. Periods that show up early, late, or twice in a month. Anxiety where there wasn't any. Words that won't come. A body that's reorganised itself.
Is this perimenopause?
If you're between 35 and 50 and the list above sounds familiar, almost certainly. Perimenopause can begin up to a decade before your final period and is driven by progesterone falling first (often years before oestrogen), then erratic oestrogen swings. The symptoms are real, the chemistry is measurable, and the work is to manage the transition rather than wait it out.
What we map
A DUTCH test maps oestrogen, progesterone, testosterone, DHEA, the full cortisol curve and oestrogen clearance metabolites. Comprehensive bloods catch thyroid, insulin and iron — all of which shift through perimenopause and amplify symptoms when they're neglected. Most clients feel meaningfully different inside 8–12 weeks of targeted protocol.