19 May 2008
Expectant mothers who experience stress during pregnancy may increase their child's risk of developing an allergy or asthma, researchers have found.
A study conducted at Harvard Medical School has linked a mother's pre-natal stress levels to her infant's developing immune system, suggesting that a stressful pregnancy could affect a child's likelihood of suffering from asthma.
The research suggests that women who are stressed while pregnant increase their baby's sensitivity to allergen exposure, and the possibility of childhood asthma.
Dr Rosalind J Wright, assistant professor of medicine at Brigham & Women's Hospital and Harvard Medical School, explained: "While predisposition to asthma may be, in part, set at birth, the factors that may determine this are not strictly genetic. Certain substances in the environment that cause allergies, such as dust mites, can increase a child's chance of developing asthma and the effects may begin before birth."
According to the report, the findings support the importance of maternal psychological wellbeing as an integral part of prenatal care.
"This research adds to a growing body of evidence that links maternal stress such as that precipitated by financial problems or relationship issues, to changes in children's developing immune systems, even during pregnancy," Dr Wright maintained.
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