The Journal

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7 pieces
A single glass blood vial of deep crimson serum catching a warm rim light, faint particles suspended within, on black.
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How to choose an at-home longevity blood test

A neutral guide to comparing at-home blood tests for longevity markers: what to ask about the panel, sample collection, repeat testing, and results.

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

How an AI health coach can compare wearable signals, and how Depth currently reads supported fitness and wellness records from Apple Health.

Raghav Dua Raghav Dua
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An app for blood biomarkers and fitness-tracker data

What to look for in an app for labs and fitness-tracker data, and how Depth currently uses supported Apple Health records.

Raghav Dua Raghav Dua
A single red blood cell, translucent and back-lit, floating alone on black.
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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
A single drop of crimson blood on the polished bevel of a steel needle, catching the light against black.
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At-home blood draw service near you: how it works in India

How an at-home blood draw service may work in India: fasting prep, markers commonly collected at home, and what to confirm before booking.

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