Fitness

The study didn't even give honest comparable groups. It treats people born in 1954 the same as people born in 1977, even though things like BMI, amount of youth physical activity, and quality of medical care has not remained the same over time. Actual mortality is much more likely to have happened to people born in 1954 than 1977 and so the people in this year weigh more heavily vs. the total study population. With so many uncontrolled variables, I don't think this study can tell us anything useful. In my honest opinion, any correlation between accident mortality and other types of mortality studied could be explained by correlations that are due to one of these uncontrolled variables and not the object of the study.