Decreases in Human Semen Quality with Age Among Healthy Men.

Eskenazi, B. ; Wyrobek, A. J. ; Sloter, E. ; Kidd, S. A. ; Moore, L. ; Young, S. S. ; Moore, D.

Technical Information Center Oak Ridge Tennessee

关键词: Men;    Semen;    Quality;    Age factors;    Sperm motility;   

RP-ID  :  DE2004802878

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The objective of the report is to characterize the associations between age and semen quality among healthy active men after controlling for identified covariates. Ninety-seven healthy, nonsmoking men between 22 and 80 years without known fertility problems who worked for or retired from a large research laboratory were studied. In a group of healthy active men, semen volume, sperm concentration, total sperm count, and sperm motility decrease continuously between 22-80 years of age, with no evidence of a threshold.