Understand your health data
Clear, non-diagnostic guides to what your results actually mean — and how the pieces fit together. Educational only; always speak to a clinician for decisions.
Blood tests
What does high ferritin mean?
High ferritin on a blood test, explained in plain English: what ferritin measures, UK reference ranges, why it can be raised even when iron is normal, and what to do next.
Read · 6 minLow ferritin and iron deficiency, explained
Low ferritin on a blood test, in plain English: what depleted iron stores mean, UK reference ranges, the symptoms often linked to it, common causes, and when to see a doctor.
Read · 6 minHbA1c explained: what your number means
HbA1c on a blood test, in plain English: what the number reflects, UK units (mmol/mol) versus the older percentage, how to read both, the general bandings, and what can skew a result.
Read · 6 minCholesterol panel explained: LDL, HDL, triglycerides
Your cholesterol panel in plain English: what total cholesterol, LDL, HDL, non-HDL, triglycerides and ratios each mean, typical UK reference points, fasting versus non-fasting, and why context matters.
Read · 7 minHow to read your full blood count (FBC)
Your full blood count in plain English: what red cells, white cells, platelets and indices like MCV mean, why mild out-of-range flags are common, when patterns matter, and reading it over time.
Read · 7 minVitamin D, B12 and folate: reading your results
Vitamin D, B12 and folate on a blood test, explained in plain English: what each one does, typical UK reference ranges and units, why deficiencies are common, and how the markers relate.
Read · 6 minWearables
Connecting your blood test to your wearable data
Blood tests and wearables each see one slice of your health. Here's why looking at them together reveals more - with educational examples of how lab markers and wearable metrics relate.
Read · 6 minHow to actually use your wearable data (not just step counts)
Your wearable tracks far more than steps. Here's what sleep, HRV, resting heart rate, recovery and activity broadly reflect, how to read trends rather than daily noise, and how to avoid over-interpreting.
Read · 6 minSee your own numbers in context
Bring your blood tests, DNA, body composition, wearables and nutrition into one place — and see how they connect.
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