47. The Real Reason You're Always Tired After 40

Most people think fatigue is a sleep problem.

But the truth is… sleep is often just a symptom.

In this episode, Zane breaks down why so many people—especially after 40—feel exhausted even when they're getting 7–8 hours of sleep.

The real issue often comes from under-fueling, chronic fasting, low carb diets, and excessive training, which drive up stress hormones like cortisol and disrupt recovery.

Zane shares the mistakes he made for years with fasted workouts, low-carb dieting, and overtraining, and explains how these habits can impact:

• Thyroid function
• Testosterone levels
• Sleep quality
• HRV and recovery
• Energy and mood

You'll also learn how to properly fuel your body for better energy, deeper sleep, and sustainable performance.

If you're tired all the time, this episode could completely change how you think about recovery.

Download Zane's Free Fit Over 40 Plan:
👉 https://free40plan.com

00:00 Why You're Still Tired
00:45 Sleep Is a Result of Your Day
02:10 The Hidden Cause of Poor Sleep
04:00 My Personal Low Carb & Fasting Mistake
05:40 Underfueling and Stress Hormones
07:10 Cortisol, Adrenaline, and Glucose Production
09:30 How Fasting Disrupts Sleep
11:30 Why You Wake Up at 2–3 AM
13:00 Fasted Workouts and Hormone Stress
15:10 Why Recovery Changes After 40
17:00 HRV, Heart Rate, and Recovery
18:40 The Mood and Energy Connection
20:10 Why Metabolic Stress Isn't Strength
22:00 Eat Less, Move More Is Wrong
23:40 How Much Protein You Actually Need
25:20 The Right Way to Eat Carbohydrates
27:30 Foods That Support Recovery
29:00 Training Smarter After 40
30:20 Managing Stress and Recovery
31:50 Why Sleep Starts When You Wake Up
33:10 Strategy Beats Extreme Discipline
35:20 Why Fatigue Is a Fuel Problem
36:00 Free Fit Over 40 Plan