Iron, Gut, and Hormones: The Chain Reaction Nobody Warned You About
# Iron, Gut, and Hormones: The Chain Reaction Nobody Warned You About > **Quick take**: You think loading up on iron is doing your body a favor. But excess fre
Grimoire
Long-form analysis at the intersection of AI and life sciences — all spells, sorted by time.
All articles
Your Cells Are Running Out of Fuel — And NAD+ Is the Key to Fixing That
By 40, your mitochondria run on half the NAD+ they had at 20. How NAD+ decline and the SIRT3 switch dim your cellular power plants, and what the science says about fighting the brownout.
Senescent Cells Are Not Garbage — They Are the Body's Dark Commanders
# Senescent Cells Are Not Garbage — They Are the Body's Dark Commanders 
The Dark Side of Keto: Your Cells May Be Aging Faster Than You Think
# The Dark Side of Keto: Your Cells May Be Aging Faster Than You Think > **TL;DR:** The keto diet is still the darling of the weight-loss world — but a wave of
Karpathy's Agent Manifesto: You're Not Writing Code Anymore — You're Conducting an Orchestra
Andrej Karpathy stopped writing code by hand in 2024. Not from burnout — from evolution. His framework for AI-orchestrated development is the clearest preview we have of what software engineering becomes next.
AI Makes You Code Faster. It Doesn't Make You Ship Faster.
AI tools speed up the coding part. They leave code review, testing, CI/CD, and deployment completely untouched. Your team's AI adoption might be at 100%. Your shipping speed improvement might be at 0%. That is a systems problem, not a model problem.