The Journal

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7 pieces
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The best at-home blood test for longevity markers

The best at-home blood test for longevity markers isn't the one with the most markers. The six that move first, and how to choose a panel that reads them well.

Prithvish Baidya Prithvish Baidya
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Introducing the Founders Edition

The first 1,000 people to join Depth become Founders: a numbered card, a free Recap on day one, and first access to everything that ships after.

Raghav Dua Raghav Dua
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AI health coach for your wearable data

An AI health coach for wearable data reads your Oura, Apple Watch and CGM together, explains why a number moved, and tells you the one thing to change.

Raghav Dua Raghav Dua
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The app that tracks your blood biomarkers and fitness-tracker data together

Most apps track blood biomarkers or fitness-tracker data, never both. Here's what an app that reads labs and wearables on one timeline should do.

Raghav Dua Raghav Dua
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Inside the Depth Recap

The Depth Recap turns every blood panel and wearable trend into one clear read: what changed, what it means, and the one or two things worth doing.

Raghav Dua Raghav Dua
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At-home blood draw service near you: how it works in India

How an at-home blood draw service near you works in India: fasting prep, the markers you can draw at home, turnaround, and why it beats a lab trip.

Raghav Dua Raghav Dua
A polished chrome sphere with a single red equatorial line, floating in black — the Depth Score as one machined object.
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How we built the Depth Score

One number to answer a hard question: how is your body actually doing? Here's what goes into it, and what we refused to let it become.

Prithvish Baidya Prithvish Baidya