Does playing tennis make you live 9.7 years longer?
Topics discussed
Introduction to More or Less and Tim Harford
The viral claim: Tennis adds 9.7 years to life
Skepticism: Is it just a wealth and education effect?
Meet Adam Jacobs: Strengths of the Mayo Clinic study
Explaining Cox Proportional Hazards and confounding
Comparing adjusted vs unadjusted life expectancy data
Limitations of adjusting for broad socioeconomic categories
Sample size issues: Only 111 tennis players in analysis
Random variation and age skew in the tennis group
The role of mixed sports: Tennis plus cycling
Conclusion, credits, and sign-off
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