TED Radio Hour Steven Johnson: Why We're Living Longer
Mar 25, 2022
Steven Johnson, an acclaimed author specializing in science and innovation, discusses a remarkable fact: human life expectancy has doubled over the last century. He dives into the crucial breakthroughs in medicine, technology, and public health that have contributed to this transformation. Johnson examines the paradox of longevity, addressing the societal implications and intergenerational issues it raises. The conversation also explores exciting research aimed at further extending human life, encouraging listeners to consider the future of health and longevity.
AI Snips
Chapters
Books
Transcript
Episode notes
The Unheralded Story of Human Longevity
- The most significant story of the last century is the doubling of human life expectancy, from around 35 to over 70 in many regions.
- This transformative change, driven by incremental progress, often goes unnoticed because it's measured in non-events like avoided deaths.
Childhood Dangers of the Past
- A century ago, infectious diseases and famine were rampant, leading to high childhood mortality rates.
- A third of children died before adulthood, a stark contrast to today's reality.
Key Innovations in Life Expectancy
- Innovations like artificial fertilizer, vaccines, and sanitation systems have saved billions of lives.
- Other crucial advancements include antibiotics, water chlorination, refrigeration, and seatbelts.
