The LibraryStart with what’s
Start with what’s
on your mind.
Pick the part of you a test reads. Inside each area you’ll find the conditions people come to understand, the markers that reveal them, and what actually helps. Or land on a single number and follow it up the chain. Plain language, cited, never a diagnosis.
Start here
The basics, before you read your own.
A few short reads on how lab results actually work, so every number after makes sense.
Foundations‘In range’ isn’t the same as optimal, and why your reference ranges differYour results came back ‘normal.’ Here’s why that word is doing far less work than you think.Read FoundationsHow to read any lab resultFour columns tell you what was measured. Three questions tell you whether it matters. The universal method for a report you did not order and cannot parse.Read FoundationsWhy a trend beats a single blood test readingOne reading is a snapshot with built-in noise. Here is where the noise comes from, how big a change has to be before it means something, and why clinicians repeat an odd result instead of treating it.Read FoundationsBlood-test units explained: mg/dL, mmol/L, and why they differThe same test can print a different number depending on the lab and country. Here is what mg/dL and mmol/L mean, how to convert the ones you meet most, and why no single factor works for every result.Read
Browse by area
Every condition, guide and marker, grouped by the part of you it reads. Open one to go deep.
Vitamins & Minerals2 conditions · 7 guides · 23 markers
Thyroid2 conditions · 2 guides · 14 markers
Kidney2 conditions · 2 guides · 13 markers
Bone Health2 conditions · 1 guide · 11 markers
Hormones2 conditions · 26 markers
Heart & Cholesterol1 condition · 3 guides · 33 markers
Blood Count (CBC)1 condition · 1 guide · 42 markers
Blood Sugar1 condition · 1 guide · 16 markers
Liver1 condition · 1 guide · 16 markers
Iron & Anemia1 condition · 1 guide · 12 markers
Gut & Digestion1 guide · 33 markers
Tumor & Screening Markers1 guide · 13 markers
Inflammation1 guide · 6 markers
Urine29 markers
Immune, Autoimmune & Allergy13 markers
Electrolytes & Salts12 markers
Blood Clotting11 markers
Infections9 markers