Sperm concentration statistics
25 Jul An analysis of research into male fertility suggests that there has been a steep decline in sperm counts for men living in richer nations. But previous studies reporting falling sperm counts have been challenged by some for being unreliable.
Allan Pacey, of the University of.
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The semen of fertile men: statistical analysis of men. - PubMed - NCBI
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Sperm counts and fertility in men: a rocky road ahead
Description:Abstract Declining sperm counts and the increasing average age of first-time parents spell trouble for human fertility, especially when set against the backdrop of ageing populations. EMBO reports advance online publication April; doi: This is the situation for the UK, the EU, and most developed and developing nations [ 1 ]. As a country develops in terms of public health, economic progress and education rate, so its birth-rate drops, and this drop has been happening ever-faster in developing countries in recent decades with the advent of improved communication and education. One aspect that compounds the negative impact of a low sperm count is that it is also frequently associated with reduced sperm quality At face value, fewer humans on the planet sounds like an attractive prospect: But it will also bring unprecedented social and financial challenges as the age structure of the population bulges at the aged end rather than at the young end.
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