Press releases from Human Reproduction - 2019

Stress during early pregnancy is linked to reduced reproductive function in male offspring

Men whose mothers were exposed to stressful life events while they were in the first 18 weeks of pregnancy may have reduced sperm counts when they become adults, according to a study published today in Human Reproduction, one of the world’s leading reproductive medicine journals.

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Infertility is linked to small increased risk of cancer

A study of over 64,000 women of childbearing age in the USA has found that infertility is associated with a higher risk of developing cancer compared to a group of over three million women without fertility problems, although the absolute risk is very low at just 2%.

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Moderate cannabis use surprisingly linked to an increase in sperm concentration

Researchers urge caution and call for more research on effects of cannabis on reproductive health

Researchers investigating the effect of cannabis smoking on men’s testicular function have made the unexpected discovery that it is linked to higher sperm counts and higher testosterone levels among moderate users compared to men who never smoked it. 

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No overall increased risk of cancer in children born after fertility treatment

Children born after assisted reproductive technology (ART) do not appear to be at greater risk of developing cancer than other children, according to the first study to look at the long-term cancer risk in ART children compared to those in the general population or who were naturally conceived by subfertile women.

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