this study have done to assess knowledge 200 girls and boys from 20 schools in 18th districts in south of tehran about individual hygiene. for gathering data use a questionnaire by 30 questions about knowledge of health in different part of body. the results of study show most of subjects have relatively good knowledge about individual hygiene. but their knowledge in some areas is more than oth...

purpose: to determine the distribution of axial length (al), vitreous chamber depth (vcd), anterior chamber depth (acd), lens thickness (lt), lens power (lp), radius of curvature (cr), and white-to-white corneal diameter (wtw) in the 14-20 year age range methods: in a cross-sectional study, sampling was done from aligoodarz high schools using multistage simple cluster sampling. for all students...

background: in people over 50, one out of three women and 12 men experience osteoporosis. youth lifestyle plays an essential role in increasing bone mass and preventing osteoporosis in old ages. thus, lifestyle changes during adolescence could cause the prevention of osteoporosis in older age. this study therefore conducted to investigate the lifestyle of female high school students in relation...

social anxiety disorder is a debilitating and chronic illness characterized by persistent fear of one or more social or performance situations, with a relatively high lifetime prevalence of 7% to 13% in the general population and various factors are involved in its creation. one of the factors that affect this disorder is personality trait. the present study compared the personality trait in ad...