In many health domains, we are concerned that observed links - for example, between “healthy” behaviors and good … vary over time. When a particular health behavior becomes more recommended, the take-up of the behavior may be larger among … people with other positive health behaviors. Such changes in selection would make it even more difficult to learn about …

interact in explaining a range of health outcomes. Using rich Australian survey data, we find that, while the two traits are … of control and health is reduced once we control for self-control, suggesting that self-control mediates at least part of … physical health. …