The long ceiling
Variolation and vaccines
Data
Pasteurization and chlorination
Testing
Antibiotics
Safety
Hunger.

Introduction: Twenty thousand days
The long ceiling: measuring life expectancy
The catalogue of evils: variolation and vaccines
Vital statistics: data and epidemiology
Safe as milk: pasteurization and chlorination
Beyond the placebo effect: drug regulation and testing
The mold that changed the world: antibiotics
Egg drops and rocket sleds: automobile and industrial safety
Feed the world: the decline of the famine
Conclusion: Bhola Island, revisited.