Ageing and Hair Cycles

摘要: The phototrichogram is a non-invasive technique by which, on the same precise area of scalp, each individual hair may be identified, and its current growth phase established. This was used to study duration cycles in 10 male subjects, balding non-balding, observations at monthly intervals over period 8-14 years. accumulated data served characterize effects ageing these subjects: reduction diameter shafts, most evident thickest hairs, prolongation interval separating loss telogen emergence replacement anagen. These various aspects scalp contribute progressive overall impoverishment. They resemble those observed course male-pattern balding, although their development less marked.