The study doesn't seem to do much to attempt to disentangle cause and effect. Poor health can be both a cause and a consequence of poverty and there are correla

The study doesn't seem to do much to attempt to disentangle cause and effect. Poor health can be both a cause and a consequence of poverty and there are correlations between traits that tend to lead to better health and to better career outcomes. These are quite complicated things to separate but this study doesn't really seem to even try.