Longevity: the work of Belloc and Breslow

Belloc and Breslow (1972), Belloc (1973) and Breslow and Enstrom (1980) examined the relationship between mortality rates and behaviour among 7000 people. They concluded from this correlational analysis that seven behaviours were related to health status. These behaviours were:
1 Sleeping 7–8 hours a day.
2 Having breakfast every day.
3 Not smoking.
4 Rarely eating between meals.
5 Being [...]