Sperm count, concentration and speed suffer under extreme heat, scientists warn
Sperm counts are at risk of dropping as the planet heats up, according to a team of scientists. Reproductive cells are already known to be affected by heat, but the findings from researchers in Singapore give more detailed insights into how climate change could impact fertility rates. Men who were exposed to extreme heat in the three months prior to providing a semen sample had a 46 per cent higher chance of a low sperm count, they found. The risk of a low sperm concentration also shot up by 40 per cent, and the ‘little swimmers’ were notably more sluggish. Do organic farms cause unintended ha...