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Timing of puberty and male reproductive health

Poor semen quality is a main cause of reduced male fecundity. In some countries, the proportion of men with a suboptimal semen quality is high. Despite this, only few potential causes of poor semen quality have been identified. The role of pubertal timing is largely unknown. In this study, 320 men aged 18 - 21 years enrolled in a Danish birth cohort provided self-reported data on pubertal indicators and delivered semen- and blood- samples. The results indicated an association between older age at pubertal development and lower semen quality and altered levels of reproductive hormones in young adult life. Please refer to pages 625 - 632 by Lauridsen et al. for details. (Artwork is made by Gudrun Frost-Sogaard at Aarhus University Design)

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