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The 1987 NFL Strike
- In 1987, an NFL players' strike led to the use of replacement players.
- This created a natural experiment for researchers to study the long-term health effects of playing professional football.
NFL Player Mortality
- Comparing NFL players to replacement players revealed a higher mortality risk for NFL players.
- However, the difference wasn't statistically significant due to the limited number of deaths in the study.
Debunking the Survival Advantage
- Previous studies showing an NFL player survival advantage are misleading.
- This is due to factors like fitness, healthcare access, and wealth, which are not solely attributable to playing football.