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The Journal
Essays & Perspectives
Field notes and essays from Elyx on healthspan, longevity, and the science of living better.
Sleep
L-Theanine: Nature’s Most Elegant Sleep NutrientSometimes better sleep isn’t about turning the brain off — it’s about helping it let go. Why L-theanine calms an overactive mind without sedation.Sergei Belyakov · Jul 15, 2026
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Tracking
Signal and Noise: What to Track Between DEXA ScansA field guide to tracking body recomposition between DEXA scans. How to read BIA scales and tape measures without getting lost in the noise.Nishanth Sudharsanam · Apr 29, 2026
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Perspective
Stop Romanticizing DeathA healthspan response to Time’s story on “What Can We Learn From Death?”Ashish Chordia · Mar 5, 2026
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Longevity
The Price of Staying Capable: Bryan Johnson’s ‘Immortals’ and The Longevity Approach in SingaporeFollowing Bryan Johnson from self experiment to Blueprint to Immortals, and what it revealed while building Elyx.Varun Panjwani · Feb 27, 2026
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L-Theanine: Nature’s Most Elegant Sleep NutrientSometimes better sleep isn’t about turning the brain off — it’s about helping it let go. Why L-theanine calms an overactive mind without sedation.Sergei Belyakov · Jul 15, 2026
→
Tracking
Signal and Noise: What to Track Between DEXA ScansA field guide to tracking body recomposition between DEXA scans. How to read BIA scales and tape measures without getting lost in the noise.Nishanth Sudharsanam · Apr 29, 2026
→
Perspective
Stop Romanticizing DeathA healthspan response to Time’s story on “What Can We Learn From Death?”Ashish Chordia · Mar 5, 2026
→
Longevity
The Price of Staying Capable: Bryan Johnson’s ‘Immortals’ and The Longevity Approach in SingaporeFollowing Bryan Johnson from self experiment to Blueprint to Immortals, and what it revealed while building Elyx.Varun Panjwani · Feb 27, 2026
→