extended abstract 1- introduction worldwide growth of ageing population has increased debate on healthy ageing in both academic research and day to day discourse. likewise, due to the change in the population age structure in iran, research on healthy ageing has developed. according to the main and determinant role of gender on health promotion lifestyle, the aim of this article is to analyze t...

Results from retirement research suggest the following conclusions about health, retirement, and the likely effects of the changes in retirement age made by the 1983 Social Security Amendments. First, after controlling for non-health-related factors, it is clear that older workers who are in poor health retire earlier than workers with similar economic circumstances who are in good health. Seco...

Peak bone mass is largely determined by genetic control, however, 30% is determined by environmental factors, most important exercise, nutrition and chronic illness. It is recognized that the maximizing peak bone density is essential in the reduction of fracture risk at all stages of life. For children and adolescents regular exercise particularly ones that include high impact features and a we...

In a recent discussion relating to environmental health, Mark D. Hollis (1) indicated that public health officials will be responslible for protecting the population against the harmful effects of ionizing radiation. Ionizing radiations result from the disintegration of unstable nuclei and are damaging to living tissue. The radiation may originate from an external source or from radioactive mat...

The "dilution effect" implies that where species vary in susceptibility to infection by a pathogen, higher diversity often leads to lower infection prevalence in hosts. For directly transmitted pathogens, non-host species may "dilute" infection directly (1) and indirectly (2). Competitors and predators may (1) alter host behavior to reduce pathogen transmission or (2) reduce host density. In a ...

background health is a complex phenomenon that can be studied from different approaches. despite a growing research in the areas of social determinants of health (sdh) and health equity, effects of macroeconomic policies on the social aspect of health are unknown in developing countries. this study aimed to determine the effect of macroeconomic policies on increasing of the social-health inequa...