N=1 After 40

Essays · Research · Methods

Notes

Essays, research notes, and working methods drawn from the public ledger.

Boundary: Experiment pages record individual tests, outcomes, and decisions. Notes examine the ideas, evidence, and methods that extend beyond a single experiment.

Recent notes

Research note Peptides · Nerve health · Experiment design

ARA-290 May Help Even If I Cannot Measure It at Home

ARA-290 has randomized human evidence for small-fiber nerve regeneration. Its most interesting effect may also remain invisible in an at-home experiment.

Essay Influence · Behavior change

Be the Example

Advice puts the burden on someone else. Example puts it on you—and that is why it can be more powerful.

Essay Training · Identity

The Gym as a Modern Ritual

Why training can become a place of ritual, attention, identity, and return—not only a place to build muscle.

Archive

August 2026

  1. Essay Optimization Can Come Before Purpose Optimization · Purpose
  2. Method note Why I Prefer Single-Arm Training Strength training
  3. Research note Dietary Fat Is More Than a Calorie Allocation Nutrition · Body composition
  4. Research note ATX-304 vs. SANA/MVD1 Compounds · Fat loss
  5. Method note Real Experimentation Includes Failure Experimentation · Transparency
  6. Research note When Antioxidants Interfere With Adaptation Nutrition · Training
  7. Essay Expertise Should Guide Curiosity, Not Own It Expertise · Self-experimentation
  8. Essay When Coaching Becomes Selection Coaching · Behavior change
  9. Research note Why I Take 15 Grams of Creatine Daily and 25 Grams During Sleep-Deprived Travel Creatine · Sleep
  10. Method note Wearables Should Measure You, Not Govern You Measurement · Wearables

July 2026

  1. Essay You Cannot Cheat at a Game You Never Agreed to Play TRT · Autonomy
  2. Essay When the Founder Becomes the Trust Layer Trust · Gray market

June 2026

  1. Method note Reading Gray-Market Peptide COAs Testing · Peptide quality
  2. Research note Does Creatine Cause Hair Loss? Creatine · Hair
  3. Method note Why Lifting Matters During Fat Loss Strength training · Body composition