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Sperm counts worldwide are plummeting faster than we thought
“We may cross a tipping point when most men will be sub-fertile,” says one expert. Here are environmental and lifestyle factors that could increase a man’s risk.
Coloured Scanning Electron Micrograph (SEM) of several mature human sperm (also called spermatozoa). Each sperm is about 65 micrometers long and broadly divided into head (red), neck and tail (blue) regions.
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