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New Research Shows Hormone Levels Measured in Hair Can Affect IVF Success By 27%

Posted by Dr Fertility on

Scientists at The University of Nottingham have found new evidence that higher levels of the so-called ‘stress hormone' cortisol measured in hair can affect the IVF success rate by 27%.


The study, funded by Nurture Fertility, included 135 women and took place between December 2012 and April 2015 at Nurture fertility clinic in Nottingham. The study included the recording of salivary and hair cortisol samples over two days. The analysis revealed that whilst


The analysis revealed that whilst short-term cortisol measurements had no significant impact, the longer term hair cortisol measurement did. From the study 60% of the women became pregnant following IVF treatment, however researchers found that some women with higher levels of cortisol didn't get pregnant using IVF.


Professor Kavita Vedhara, from the University of Nottingham’s School of Medicine stated, “While these results do not specifically implicate stress they do provide preliminary evidence that long-term cortisol levels are associated with a reduced likelihood of conceiving”.

“A range of factors are likely to account for that, stress being one possibility. These findings are clearly compelling but more research is needed to more fully understand the factors that influence cortisol levels in patients undergoing IVF”.


Source: ITV News Central,


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