What ages hair?
نویسندگان
چکیده
Hair has always played an important role in the history of mankind. Egyptian hieroglyphics are testimony of the paramount importance of hair for this ancient civilization, not only because of the visual effect, but also because of the erotic symbolism connected with hair. For the ancient Romans hair was not only a question of fashion but was used as a symbol of beauty, virility, class and intellect. In modern western culture having a full head of hair is often associated with desirable qualities such as youthfulness and vitality. Most people experience changes in hair and scalp health as they age. Subsequent hair loss may cause significant distress that deeply affects people’s life causing social anxiety and interfering with their well being. Genetic and hormonal changes are important factors in hair loss, butweathering and grooming habits take a toll on our hair as well. A recent advisory board comprising twelve experts in hair fibers and hair loss was formed to review hair loss in relation to heredity, aging and environmental factors emphasizing measures that may slow alopecia. The following information is a summary of their discussions on these topics.
منابع مشابه
مطالعه خصوصیات الیاف شترهای ماده استان سمنان
To study the effect of age on camel hair characteristics and their phenotypic correlations in Semnan province, 95 dromedary female camels (aged 1-20) were selected. Hair samples were taken from right flank in mid spring. Least square means were analyzed at different ages, and also 4 age groups by one-way and general liner model (GLM) using SAS software package. Analysis of variance indicated a ...
متن کاملمطالعه خصوصیات الیاف شترهای ماده استان سمنان
To study the effect of age on camel hair characteristics and their phenotypic correlations in Semnan province, 95 dromedary female camels (aged 1-20) were selected. Hair samples were taken from right flank in mid spring. Least square means were analyzed at different ages, and also 4 age groups by one-way and general liner model (GLM) using SAS software package. Analysis of variance indicated a ...
متن کاملSox2-CreER mice are useful for fate mapping of mature, but not neonatal, cochlear supporting cells in hair cell regeneration studies
Studies of hair cell regeneration in the postnatal cochlea rely on fate mapping of supporting cells. Here we characterized a Sox2-CreER knock-in mouse line with two independent reporter mouse strains at neonatal and mature ages. Regardless of induction age, reporter expression was robust, with CreER activity being readily detectable in >85% of supporting cells within the organ of Corti. When in...
متن کاملPubertal Pathways in Girls Enrolled in a Contemporary British Cohort
Data from the Avon Longitudinal Study of Parents and Children were used to describe initiation of secondary sexual characteristic development of girls. Tanner stages of breast and pubic hair and menarche status were self-reported via mailed questionnaires, administered from ages 8-14. Initiation pathway was categorized as breast [thelarche] or pubic hair [pubarche] development alone, or synchro...
متن کاملMedian ages at stages of sexual maturity and excess weight in school children
BACKGROUND We aimed to estimate the median ages at specific stages of sexual maturity stratified by excess weight in boys and girls. MATERIALS AND METHOD This was a cross-sectional study made in 2007 in Florianopolis, Brazil, with 2,339 schoolchildren between 8 to 14 years of age (1,107 boys) selected at random in two steps (by region and type of school). The schoolchildren were divided into:...
متن کامل