Men can be more likely to experience fertility problems when their mothers have encountered a stressful life early in their pregnancy, according to a recent study.
People who had stress-free births were less likely to get lower testosterone, less total sperm and less sperm in people who had stress-free encounters in early pregnancy, in the women who had one or more stressful lives.
The authors analyzed data from 643 men at age twenty on reproductive hormones and sperm quality and quantity.
In total, 407 people, or 63%, had mothers who experienced at least one stressful event in the early part of the pregnancy, such as death of their near relative or friend or divorce, marital issues, job loss, cash difficulties, complications from pregnancies or a residential transfer. Early in pregnancy, mothers of 87 people suffered at least 3 stressful lives.
Mothers who did not report stressful lives early in childhood are more likely to be wealthy and stable in weight.
The average duration of pregnancy is around 40 weeks, and the full term is considered for babies born after a 37-week gestation. Researchers surveyed women with two stages of pregnancy: 18 and 34 weeks of gestation for any life stress encounter they experienced in the last four months.
Later in pregnancy, stressful life conditions were not specifically correlated with adult fertility of children.
“There are important effects on the health of children after their birth, through their childhood, and on the health of women during their pregnancy,” said Dr. Roger Hart, Senior Study Author, University of Western Australia and a Fertility Researcher.
“To schedule a couple of families… The best time to try and conceive is when both the woman and the male partner are as healthy as possible, in physical and mental health.
Hart and his colleagues have noted in Human Reproduction that there is a biological correlation between early pregnancy exposure to life stress and male unfertility. Nevertheless, 8 to 14 weeks of pregnancy are a critical stage in male reproductive development, the study team reports, and stress that disrupt the normal development process during this time.
The study was not a controlled experiment to show whether or how stressful mothers during childbirth could influence their souls directly decades later. And the scientist did not track the men to see who went to the children’s fathers.
Another drawback of the analysis is that not everybody addresses the same stressors in the same way and there is no feedback from researchers on how the study group feels about the situations that are categorized as stressful.
The way women face negative situations can all have consequences such as socio-economic status, maternal education and lack of insurance.
Nevertheless, the findings add to the proof of the value of control of pressure during pregnancy, said Dr. Muhammad Imran Omar, a researcher at Aberdeen University in the UK. Who didn’t participate in the analysis.
“Physiological, metabolic and hormonal changes in the body are associated with stressful events of life,” said Omar by email.
“These changes are also present during pregnancy and can affect fetal development,” added Omar. “Experience in life has a high degree of stress hormone cortisol in the body, which are also present in the amniotic fluid and can impact the development of the fetus.”
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