quantified selfbiohackingdeveloper healthHRVCGMblood biomarkerscognitive performancewearablessleep tracking
The Developer's Quantified Self Stack: Tracking What Actually Matters for Cognitive Performance
A practical, tiered guide to the quantified self stack for developers — from HRV and sleep tracking through CGM and blood biomarkers — focused on the metrics that move the needle on cognitive output, not just vanity numbers.
·13 min read