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Genes and Environment in Aging
- Genes influence lifespan, but less so for individual differences.
- Only about 20% of aging heritability is due to genes, the rest is environmental.
Inspiration for Air Pollution Research
- Finch's air pollution research was inspired by colleagues at USC.
- They found that arterial aging in Los Angeles correlated with air particle density.
The Myth of Cellular Regeneration
- Aging is a complex process; some molecules deteriorate while others regenerate slower.
- The idea of a "new you" every seven years is a myth, not science-based.