These are scientists seeking relevance for their research. I have seen the headlines where a declining birth rate is portrayed as indicating a decline in fertility. This ignores the fact that now both partners have greater control on exactly how many children they will have and when in their life stage.
There are reputedly many millions of sperm in every ejaculation and yet it appears that less than a hundred actually get involved in the fertilization of the egg. Any more than this could be regarded as wasted energy from the male.
It won’t necessarily be the number of the sperm involved as much as their quality and motility that completes the task, whether it is accelerated by or impeded by the male consuming caffeine may have little to no significance in the outcome.
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