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The number of sperm is rapidly decreasing and researchers believe that environmental factors are in play. Veuer's Tony Spitz has details.
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The latest problem associated with global warming: the number of sperm in men.

This is not a good news. According to a A new study published on Tuesday, male fertility seems to be decreasing as temperatures rise. The study showed "clear evidence" that stress from heat waves reduces "sperm count and viability" bugs.

Yes, scientists used beetles to test their theory. But researchers say insects can be used as mediators.

Earth is one of the most common species, "so these results are very important to understand how species react to climate change," said co-author Matt Gage, ecologist at the Australian University of the U.K.

Heat waves in this century are expected to be more frequent and extreme, as human-induced climate change continues.

"Studies have also shown that the heat shock may also harm male reproduction for warming animals, and past work has shown that it causes infertility in mammals," said lead author Kirs Sales, also from East Anglia University.

"Our research suggests that heat waves halve the male reproductive sport by half, and it was surprising how consistent the effect was," he added.

For men, testicles form semen, and to do this, the testicles should be colder than the inside of the body, according to the University of Rochester Medical University.

Researchers in a study published Tuesday revealed that a heat wave (9 to 13 degrees above typical 5-day high temperatures) is a damaged reproductive man, but not a woman. Heat waves reduce male fertility and sperm competitiveness and consecutive heat waves almost sterilize men, "said the study.

In addition, the descendants of the fathers who survived the heat lived a shorter life.

"When it comes to heat waves and reproduction, males can not withstand it," closed sale.

The study was published in the Nature Communications magazine, which was compared to British journalists.

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