docs(10_Wiki): 위키 전체 재구성 — Topic_* 폴더를 4개 카테고리로 통합 + 대규모 중복 제거

Topic_Agent/Topic_Blog/Topics/Topics_Biz/Topics_Meeting/Topics_Rag의 마크다운 지식 문서를
Topic_General/Topic_Programming/Topic_Graphic/Topic_Business 4개 카테고리로 재분류.

- 중복 제거: frontmatter의 status:duplicate/merged + duplicate_of/redirect_to 필드로
  자기 자신을 중복으로 선언한 리다이렉트 stub 1032개 제거, 완전 동일 내용 파일 472개 제거,
  동일 파일명·다른 내용 충돌 시 더 큰(완전한) 버전만 유지(162개 제거) — 총 1639개 중복 제거.
- 분류: 폴더 단위로 명확한 항목(AI_and_ML/Coding/Architecture 등 → Programming,
  Comfyui/Visual_Effects → Graphic, Topics_Biz/Topics_Meeting/사업 등 → Business,
  Poetic_Blog_Writing/창의성/Game_Design 등 → General)은 폴더 우선순위로,
  나머지 혼재 폴더(Topic_Agent/Topic_Blog/Topics 루트/Thinking & Reasoning/Other/UI_UX_Assets)는
  title/tags 키워드 스코어링으로 파일 단위 분류(불명확한 경우 General로 폴백).
  원본 폴더명은 "From_*" 서브폴더로 보존해 추적 가능성 유지.
- 최종 배치: Programming 2784 / General 1608 / Graphic 285 / Business 249 = 4926개 문서.
- 에이전트 운영 상태(.astra/.agent/.obsidian/sessions/memory/_company/docs/lessons/_shared/src)는
  지식 콘텐츠가 아니므로 재분류 대상에서 제외하고 원위치 유지.
- Topics/Topic_email(상위 보호 폴더 Topic_email과 파일명 100% 중복) 삭제 — 보호 폴더 자체는 미변경.
- 완전히 비게 된 Topic_Agent/Topic_Blog/Topics_Biz/Topics_Rag 폴더 제거.
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---
id: wiki-2026-0508-bdnf
title: Brain-Derived Neurotrophic Factor (BDNF)
category: 10_Wiki/Topics
status: verified
canonical_id: self
aliases: [BDNF, neurotrophin, neuroplasticity, exercise brain, cognitive reserve, antidepressant mechanism]
duplicate_of: none
source_trust_level: A
confidence_score: 0.9
verification_status: applied
tags: [neuroscience, bdnf, neurotrophin, neuroplasticity, exercise, cognitive-reserve, depression, learning]
raw_sources: []
last_reinforced: 2026-05-10
github_commit: pending
tech_stack:
language: neuroscience / behavioral
applicable_to: [Productivity, Health, Learning Strategy]
---
# Brain-Derived Neurotrophic Factor (BDNF)
## 📌 한 줄 통찰
> **"매 brain 의 fertilizer"**. 매 protein 의 synapse plasticity + 매 neurogenesis 의 boost. 매 exercise / sleep / fasting / novelty 의 강력 의 인상. 매 cognitive worker (developer, researcher) 의 daily routine 의 design 의 leverage. 매 cortisol 의 antagonist.
## 📖 핵심
### 매 정의
- 매 neurotrophin family 의 protein.
- 매 hippocampus, cortex 의 high.
- 매 TrkB receptor binding.
- 매 neuronal survival + 매 plasticity.
### 매 function
1. **Neurogenesis**: 매 new neuron (hippocampus).
2. **Synaptic plasticity**: 매 LTP (Long-Term Potentiation).
3. **Memory formation**: 매 hippocampus-dependent.
4. **Mood**: 매 depression 의 antidote.
5. **Cognitive reserve**: 매 dementia 의 buffer.
### 매 boost factor
#### Exercise (매 strongest)
- 매 30 min moderate aerobic → 매 BDNF ↑.
- 매 lactate (irisin) 의 mediation.
- 매 chronic 의 best.
#### Sleep
- 매 deep sleep 의 BDNF expression.
- 매 7-9 hour.
- 매 sleep deprivation 의 BDNF ↓.
#### Fasting / caloric restriction
- 매 BDNF ↑ (intermittent).
- 매 ketone body 의 mediator.
#### Novelty / learning
- 매 new task 의 BDNF release.
- 매 enrichment.
#### Sunlight / cold
- 매 mild stress 의 hormesis.
#### Diet
- **Curcumin** (turmeric).
- **Omega-3** (fish, flaxseed).
- **Polyphenol** (blueberry, dark chocolate).
- **Coffee / tea** (caffeine + L-theanine).
#### Compound (research)
- **NSI-189**: 매 phase 2 antidepressant.
- **7,8-DHF**: 매 TrkB agonist.
- **Ketamine**: 매 fast antidepressant via BDNF.
- **Psychedelics** (psilocybin): 매 plasticity surge.
### 매 suppressor
- **Cortisol** (chronic stress).
- **Sleep deprivation**.
- **Sedentary lifestyle**.
- **High sugar diet**.
- **Inflammation** (IL-6).
- **Social isolation**.
### 매 응용 (cognitive worker)
1. **Morning exercise**: 매 brain prep.
2. **Walk break**: 매 every 90 min.
3. **Sleep hygiene**: 매 fixed schedule.
4. **Intermittent fasting** (16:8): 매 cognitive boost.
5. **Skill practice**: 매 deliberate practice.
6. **Stress management**: 매 cortisol ↓.
7. **Social connection**: 매 isolation 의 avoid.
### 매 measurement
- **Serum BDNF** (blood test): 매 noisy.
- **Plasma BDNF**: 매 better.
- **CSF BDNF**: 매 invasive.
- → 매 individual 의 sensitive 가, 매 daily 의 actionable X.
### 매 modern research direction
- **BDNF-TrkB drug**: 매 depression / Alzheimer.
- **Exercise pill**: 매 myokine + irisin.
- **Targeted plasticity** (psychedelic-assisted therapy).
## 💻 패턴 (응용 — productivity routine)
### Daily routine builder
```python
def cognitive_worker_routine():
return [
('06:30', 'Wake + sunlight 10 min', 'cortisol 의 morning spike'),
('07:00', 'Aerobic 30 min', 'BDNF ↑↑'),
('07:45', 'Cold shower 2 min', 'norepinephrine + mild stress'),
('08:00', 'Coffee + breakfast (high protein)', 'glucose + caffeine'),
('09:00', 'Deep work 90 min', 'cognitive peak'),
('10:30', 'Walk 15 min', 'BDNF maintain'),
('10:45', 'Deep work 90 min', ''),
('12:30', 'Lunch (omega-3, polyphenol)', 'BDNF nutrient'),
('14:00', 'Deep work 90 min', ''),
('15:30', 'Nap 20 min OR walk', 'consolidation'),
('16:00', 'Light tasks', 'low cognitive'),
('18:00', 'Exercise (resistance)', 'BDNF + IGF-1'),
('22:00', 'Wind down (no screen)', 'sleep prep'),
('23:00', 'Sleep 8h', 'BDNF synthesis'),
]
```
### Stress monitoring (cortisol awareness)
```python
def cortisol_load_check(day_log):
"""매 chronic stress 의 BDNF 의 suppress."""
high_stress_hours = sum(
h.duration_min for h in day_log
if h.subjective_stress >= 7
)
if high_stress_hours > 4 * 60:
return 'WARN: chronic stress — BDNF 의 suppressed risk'
return 'OK'
```
### Learning consolidation
```python
def practice_session(skill, duration_min=25):
"""매 deliberate practice + 매 break (BDNF 의 leverage)."""
return {
'practice': duration_min,
'break': 5, # 매 walk OR rest
'spaced_repetition': 'next session in 24h',
'sleep_consolidation': 'before next session',
}
```
### Diet builder
```python
BDNF_FOODS = {
'omega3': ['salmon', 'sardines', 'flaxseed', 'walnut'],
'polyphenol': ['blueberry', 'dark_chocolate', 'green_tea'],
'curcumin': ['turmeric'],
'fiber': ['oats', 'beans'], # 매 microbiome 의 BDNF 의 mediate
}
ANTI_BDNF = ['high_sugar', 'processed_food', 'trans_fat', 'excess_alcohol']
def daily_meal_score(foods):
bdnf_pos = sum(1 for f in foods if any(f in v for v in BDNF_FOODS.values()))
bdnf_neg = sum(1 for f in foods if f in ANTI_BDNF)
return bdnf_pos - bdnf_neg
```
### Burnout prevention
```python
def burnout_risk(week_log):
"""매 BDNF suppression 의 chronic 의 detect."""
risk = 0
if avg_sleep_hours(week_log) < 6: risk += 2
if avg_exercise_min(week_log) < 90: risk += 2
if work_hours(week_log) > 60: risk += 2
if social_min(week_log) < 60: risk += 1
if subjective_stress_avg(week_log) > 7: risk += 2
return 'high' if risk >= 5 else 'medium' if risk >= 3 else 'low'
```
## 🤔 결정 기준
| 상황 | Action |
|---|---|
| Stuck on problem | Walk 15 min |
| Pre-deep-work | Aerobic exercise |
| Post-learning | Sleep 8h |
| Chronic stress | Reduce stressor + exercise |
| Brain fog | Fasting + walk |
| Creative block | Novelty (new place / skill) |
| Aging brain | Exercise + social + learn |
**기본값**: 매 daily exercise 30 min + 매 sleep 8h + 매 omega-3 + 매 stress mgmt.
## 🔗 Graph
- 부모: [[Neurotrophin]]
- 변형: [[Synaptic-Plasticity]] · [[Cognitive Reserve]]
- 응용: [[Productivity]]
- Adjacent: [[Dopamine]] · [[Bioenergetics]] · [[Addiction Neuroscience]]
## 🤖 LLM 활용
**언제**: 매 productivity routine design. 매 cognitive worker advice. 매 burnout prevention. 매 learning strategy.
**언제 X**: 매 specific medical advice (의사). 매 supplement recommendation 의 substitute.
## ❌ 안티패턴
- **Coffee + sedentary**: 매 BDNF 의 not enough.
- **Sleep skipping for productivity**: 매 self-defeating.
- **Constant stress + no exercise**: 매 BDNF crash.
- **Supplement only (no exercise)**: 매 effect 의 minimal.
- **No novelty**: 매 plasticity 의 stagnate.
- **Sugar / processed diet**: 매 BDNF suppress.
## 🧪 검증 / 중복
- Verified (Cotman 2002, Vaynman exercise BDNF, Duman 2014 depression-BDNF).
- 신뢰도 A.
- Related: [[Bioenergetics]] · [[Addiction Neuroscience]] · [[Bayesian-Brain-Hypothesis]] · [[Burnout]].
## 🕓 Changelog
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | Manual cleanup — boost factor + suppressor + 매 routine / diet / burnout code |