间歇性禁食计时器

间歇性禁食 (Intermittent Fasting, IF) 并非一种饮食计划，而是一种进食与禁食交替进行的进食模式。其益处远不止于限制热量——禁食能触发一系列细胞修复机制，包括细胞自噬（细胞回收）、提高胰岛素敏感性、促进生长激素分泌，以及增强代谢灵活性（即身体在燃烧葡萄糖和脂肪之间高效切换能量来源的能力）。

Your Results

📉

Insulin drops 4h

Blood sugar normalizes, insulin falls — fat mobilization begins

🔥

Fat burning starts 12h

Glycogen depleted, body switches to fat oxidation as primary fuel

💪

Growth hormone rises 14h

HGH increases for tissue repair and fat metabolism

♻️

Autophagy begins 16h

Cellular cleanup — damaged proteins and organelles recycled

🧠

Deep ketosis 18h

Significant ketone production — brain uses ketones for fuel

✨

Autophagy peaks 24h

Maximum cellular recycling, gut rest, intestinal stem cell activation

🧬

Stem cell activation 36h

Significant increase in stem cell regeneration (research-phase)

🛡️

Deep autophagy 48h

Immune system reset begins, old immune cells cleared

About fasting timelines: These milestones are approximate and vary by individual (prior diet, activity level, metabolic health). Autophagy research is still emerging — exact thresholds differ between studies. Extended fasts beyond 24 hours should be done under guidance. Always break fasts gently with easily digestible foods.

禁食的生物学原理

核心要点

禁食 16-18 小时后，细胞自噬（细胞清理）过程会显著开启
在 24 小时禁食期间，生长激素水平会增加 300-500%
仅需进行 3 天的限时进食，胰岛素敏感性就会有显著改善
16:8 方案（禁食 16 小时，进食窗口 8 小时）是研究最充分且最易坚持的方法
只要在进食窗口内摄入充足的蛋白质，禁食并不会导致肌肉流失
代谢切换（从葡萄糖转向酮体供能）通常发生在禁食 12-16 小时时

细胞自噬：为何细胞回收至关重要

“自噬”（Autophagy）源自希腊语，意为“自我吞噬”，是细胞消化并回收受损细胞器、错误折叠蛋白及细胞内病原体的一种过程。这一过程受 mTOR 通路抑制（由进食，尤其是蛋白质和碳水化合物激活），并受 AMPK 通路激活（由禁食期间的能量匮乏触发）。大隅良典因阐明细胞自噬机制而荣获 2016 年诺贝尔奖。自噬功能障碍与神经退行性疾病（如阿尔茨海默症、帕金森症）、癌症、加速衰老及代谢疾病密切相关。定期进行 16 小时以上的禁食窗口，是激活这一修复系统最切实可行的方法之一。

The e-book for this topic • Habit Tracker

Sources cited inside

37 pages • fillable PDF

Metabolic Health Habit Dashboard

Nine daily habits from the diabetes-prevention trials, ticked each evening for four weeks. Every day scores itself, every week adds up, and one dashboard page shows what changed.

What is inside:

✓ Your Markers, Labelled: What metabolic health looks like on a blood test, and a page where you type in your numbers: fasting glucose, HbA1c, triglycerides, HDL, blood pressure and waist. Each is labelled by range, and the triglyceride-to-HDL ratio, HOMA-IR and waist-to-height ratio are worked out, now and after 12 weeks.

✓ What the Trials Found: The Diabetes Prevention Program, the Finnish and Da Qing studies, food order, post-meal walking, breaking up sitting, sleep restriction and late eating: ten studies in plain words, and what happens between one meal and insulin resistance.

✓ Three Pillars, Nine Habits: Plate (fiber first, protein at every meal, carbohydrate whole and last), Move (a walk after the largest meal, sitting broken, steps or resistance work) and Rhythm (a 10–12 hour eating window, 7+ hours of sleep, alcohol within limits), with a protein calculator, an eating-window calculator and a day that scores 9.

✓ The 4-Week Log That Scores Itself: Four weekly sheets: tick nine habits each evening, rate energy and note sleep. Each day scores itself out of 9, each week adds up overall and by pillar, with average energy, sleep and slump days.

$27$10.80 one payment

PDF e-book + free online edition • 60-day money-back guarantee

See the e-book