Sperm counts, testicular cancers, and the environment

11 Oct 2017
The BMJ

Disturbing trends in men’s reproductive health demand urgent attention

A recent meta-analysis by Levine and colleagues1 showing significant declines in sperm counts among men in the Western world caught considerable media attention.2 The Levine study followed a similar report in The BMJ 25 years ago.3 Should we be concerned? Is male reproductive health really at risk?

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