Calculate Your Fatigue Risk

Fatigue History

Fatigue Risk 2025: The Energy Crisis

76% of workers report regular fatigue. Chronic exhaustion costs $136 billion/year in lost productivity. Use our tool to measure fatigue, burnout, adrenal fatigue and recovery capacity.

Fatigue Types

TypeSymptomsCause
AcuteTemporary tirednessShort-term overwork
Chronic6+ months exhaustionSleep debt, stress
BurnoutEmotional depletionWork overload
AdrenalHPA axis dysfunctionChronic stress

Key Risk Factors

  • Sleep <7 hrs: 3x fatigue risk
  • Work >50 hrs/week: 35% burnout
  • High stress: Cortisol ↑ 50%
  • No recovery days: Adrenal crash
  • Caffeine >3 cups: Rebound fatigue

Energy Equation

Energy = (Sleep × Quality) + Exercise + Recovery – (Work + Stress + Caffeine)

Adrenal Fatigue Stages

  • Stage 1: Wired but tired
  • Stage 2: Stressed and fatigued
  • Stage 3: Burned out
  • Stage 4: Total exhaustion

Recovery Science

  • HRV: High = good recovery
  • 1 full rest day/week: 40% fatigue ↓
  • Micro-breaks: 5 min/hr = 25% energy ↑
  • Sleep consistency: ±30 min bedtime

Work-Life Balance

  • Japan: Karoshi (death by overwork)
  • 4-day week trials: 38% less burnout
  • Remote work: 22% higher fatigue if no boundaries

Nutrition & Fatigue

  • B12 deficiency: 40% of vegans
  • Iron low: 30% women
  • Magnesium: 60% deficient
  • Dehydration: 2% = 20% performance ↓

Fix Your Energy

  1. Sleep 7–9 hrs same time
  2. Work ≤45 hrs/week
  3. 2 recovery days
  4. Exercise 150 min/week
  5. Stress tools: Meditation, nature
  6. Caffeine before 2pm

Warning Signs

  • Morning dread
  • Caffeine dependency
  • Memory fog
  • Immune crashes

Science Facts

  • 1 hr sleep debt = 1 day aging
  • Napping 20 min = 34% performance ↑
  • Cortisol peak 6–8am
  • Blue light delays melatonin 3 hrs

Related Tools

FAQs

Can I recover from burnout? Yes, 3–6 months with rest.

Adrenal fatigue real? Controversial; HPA dysfunction is.

How fast can I improve? 2 weeks with sleep + boundaries.

Conclusion

Energy is your most valuable asset. Track it, protect it, recharge. Don’t wait for collapse.

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