• Beginnings of metabolic flexibility research
• Where the idea of physiologic flexibility came from
• Can we transfer the idea of metabolic flexibility to our physiology?
• Apply stress to the system, does the system get better?
• What systems in the body have to be regulated or you'll be in a world of hurt?
• Body temperature
• pH
• Blood glucose
• Oxygen and CO2
• How improvements in each contributes to being a more robust human

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