In a study of lifestyles and health of the adult population of some Oxfordshire villages, data were collected upon the usual sleep duration and quality, smoking and drinking habits of 725 men and 759 women. A strong negative association has been found between cigarette smoking and sleep duration on both sexes, and between alcohol consumption and sleep duration in men. There is no equivalent association between drinking or smoking and reported poor quality sleep. While these findings do not prove a causal relationship, the absence of complaints of poor quality sleep among the smokers and drinkers suggests that these habits are not simply the correlates of underlying psychological problems leading to insomnia.

Adolescent↗

PubMedDate not supplied

A note on familial relations in IQ.

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Adolescent↗

PubMedDate not supplied

Migration and the structure of the Otmoor villages.

Patterns of variation in I.Q., personality and stature are examined in the Otmoor region of Oxfordshire according to village of residence and whether people were born locally or not. It is shown that the locally born do not vary by village in I.Q., but that immigrants do and this is not solely due to social-class associations. Immigrants also have substantially higher I.Qs than those born locally. The findings are discussed in terms of the selectiveness of in-and-out migration.

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