F decades medieval historians have placed population at the centre of their concerns, but it is only in recent years that their studies have begun to constitute a respectable branch of historical demography. From the scrutiny of oblique records which provide indications of such matters as settlement, the size of landholdings, land values, prices and wages, attention has increasingly turned towa...

BACKGROUND Based on the knowledge on beneficial effects of physical activity (PA) on health and fitness, we hypothesized that PA in adolescence is related to high education and socio-economic position (SEP) in adulthood. Improved school performance may mediate the hypothesized relationship. METHODS The Adolescent Health and Lifestyle Surveys (AHLS), collected biennially in 1981-89 (baseline) ...

OBJECTIVES to examine the association between 34-year trajectories of social activity, from middle age to old age and late-life disability. METHODS data from the Swedish Level of Living Survey (LNU) and the Swedish Panel Study of the Oldest Old (SWEOLD) were used. LNU data from 1968, 1981, 1991 and 2000 were merged with SWEOLD data from 1992, 2002 and 2004 to create a longitudinal data set wi...

OBJECTIVE To test the validity of age at menarche self-reported in adulthood and examine whether socioeconomic position, education, experience of gynaecological events and psychological symptoms influence the accuracy of recall. DESIGN Prospective birth cohort study. SETTING England, Scotland and Wales. PARTICIPANTS 1050 women from the Medical Research Council National Survey of Health an...

Ten young women (age 20 to 22 years) and 10 middle-aged women (age 36 to 44 years) served as subjects in choice reaction time, letter classification, and abstract matching-to-sample tasks. In each of seven conditions, the older group responded more slowly than the younger group. Age differences showed a complexity effect. That is, differences between the latencies of young and old subjects incr...

Disease classes have hitherto been based on anatomical pathology and structural lesions belonging to an earlier ecological medical model involving classification. The diseases of ageing now coming to dominate clinical practice evolve across the clinical threshold in middle age parallel to changes occurring in the internal environment. The concept 'multiple pathology' used to describe the plural...

This paper investigates how the association between cognitive achievement and self-rated health in middle age differs by race, and attempts to explain these differences. The role of cognition in health determination has received only limited empirical attention, and even less is known about how race may affect this relationship. Using data from the NLSY, I find that while Whites with higher cog...

introduction: one of the most popular methods for evaluating old people’s health condition is to assess their functional practice. the aim of this study was to assess the status of daily living activities among the older people of maku, iran. methods: the present cross-sectional study was accomplished among 216 older people in maku via simple random sampling. participant’s subjective and demogr...

background: in iran, despite the use of vaccine since 1976, we are still having local epidemics especially in the children aged 15-20 years old. since 1996, the yearly epidemics of measles have been reported in these groups in sistan- baluchestan province, south east of iran. the present study was conducted to determinate the level of immunity in this target population in zahedan. methods: a to...