Introduction
PART 1: BUILDING HEALTH
Chapter 1: Becoming Unbreakable
Chapter 2: The Real Reason You Die
Chapter 3: Challenge. Adapt. Thrive.
Chapter 4: “Stress” for Strength
PART 2: ANCESTRAL CHALLENGES
Chapter 5: Muscular Challenges (Adaptations of Strength)
Chapter 6: Endurance Challenges (Adaptations of Endurance)
Chapter 7: Movement Challenges (Adaptations of Mobility, Agility, and Balance)
Chapter 8: Thermal Challenges (Adaptations of Heat Tolerance)
Chapter 9: Cold Challenges (Adaptations of Cold Tolerance)
Chapter 10: Cognitive Challenges and Psychological Stress (Adaptations of Cognitive Reserve Capacity, Knowledge/Expertise, and Psychological Resilience)
Chapter 11: Famine and Food Shortage Challenges (Adaptation of Metabolic Flexibility
Chapter 12: Hypoxia/Hypercapnia Challenges (Adaptations of Tolerance to Low Oxygen States)
Chapter 13: Ultraviolet (UV) Light, Blue Light, and Red/Near-Infrared Light Challenges (Adaptation of Cellular Detoxification and Antioxidant Defense Systems)
Chapter 14: Phytochemical Challenges (Adaptation of Inborn Antioxidant Defense and Detox Systems)
Chapter 15: Microbes, Infections, and other Immune System Challenges (Adaptation of Immune Systems and Immune Memory)
Chapter 16: Fear Challenges (Adaptation of Courage)
Chapter 17: Stress, Discomfort, and Doing Difficult Things (Adaptations of Willpower, and Mental and Physical Toughness)
Conclusion
APPENDIX: Unbreakable Reserve Capacity Metrics
