4 min read
Optimal vs normal: why “in range” isn’t the whole story
Lab results are flagged against a population “normal” range. Optimal ranges - where risk tends to be lowest - are often narrower. Here is the difference, and why it matters.
Guides
Plain-English guides to bloodwork and longevity: what the numbers mean and how to read them. Information, not a diagnosis.
3 min read
What is a biological age, and how is it calculated?
Your biological age is a single, transparent number from your biomarkers - your chronological age nudged by how far your markers sit from optimal. Here is exactly how it works.
5 min read
The blood markers that matter most for longevity
A handful of blood markers carry an outsized amount of signal about long-term health. Here are five worth understanding, and what each one reflects.
3 min read
How to prepare for a blood test
A few simple things - fasting, timing, hydration - can make your blood results more accurate and comparable over time. Here is what generally helps.
4 min read
Metabolic health explained: glucose, insulin and HbA1c
Three blood markers tell most of the story of how your body handles sugar. Here is what fasting glucose, fasting insulin and HbA1c each show, and why reading them together matters.