2 — Nutrition

Productivity for Knowledge Workers

A book-shaped table of contents for productivity as practiced by a knowledge worker: foundations, self-management, goal setting, time and deep work, personal knowledge management, learning, task systems, decision making, habits, digital productivity, engineering and career practice, health, review, and an advanced operating-system layer, plus reference appendices — cross-linking existing notes instead of duplicating them.

Exercise

Regular movement as a direct input to cognitive performance and mood regulation, not a separate line item competing with work hours.

4 — Preventing Burnout

The early warning signs of burnout and the load-management habits that catch it before it forces a much larger correction.

Sleep

Sleep as the highest-leverage recovery input, and the consistency habits (schedule, light, wind-down) that protect it more than any single trick.

Recovery Systems

Deliberate recovery — deload periods, true days off, active rest — as an engineered input to sustained output, not something that only happens by accident.