Living in an area with high levels of air pollution may increase a woman's chances of having a child with autism, according to the first national study to date that investigates the possible link.
"Women who were exposed to the highest levels of diesel or mercury in the air were twice as likely to have a child with autism than women who lived in the cleanest parts of the sample," study author Andrea Roberts, a research associate with the Harvard School of Public Health, told
The Huffington Post.
Earlier studies have established a potential connection between air pollution and autism risk, but have concentrated on a few individual states. The latest study, published in the journal
Environmental Health Perspectives on Tuesday, draws on a large sample of women across the whole country.
Researchers crossed U.S. Environmental Protection Agency data on the level of air pollutants from year to year with data from the
Nurses' Health Study, one of the longest running investigations of women's health in the U.S. They looked for associations between levels of pollutants in the time and place that a woman was pregnant and whether that woman went on to have a child with a diagnosed autism spectrum disorder.
The researchers split up the locations into fifths, and women who lived in the most polluted sections -- those with the highest levels of diesel particulates or mercury in the air -- were twice as likely to have a child with autism compared to those in the cleanest sections. Other types of air pollution, including lead, manganese and other hard metals, were also linked to a greater risk of autism, although the risk was not quite as high.
"All of the chemicals studied are known neurotoxins," Roberts said. "They are also known to pass from mother to baby while a woman is pregnant. It's very plausible that the 'stuff' the mother is taking in through the air is affecting her baby's brain development."
Comment: So the big question: Is the article above, written by a 'world renowned specialist in addiction psychiatry', contributing to the mass diagnosing of disorders, such as 'caffeine use disorder' and in essence fueling the breeding of mental illness in the US?
The following articles detail just a few examples of 'the tendency toward over-diagnosis and over-prescription that dominates the mental health care scene in the US and contributes to a system that is better at producing disorders than rectifying them.'
Profit Motive? Big Psychiatry Invents and Redefines Mental Illnesses
All for profit: Psychiatric "MD's" dispense dangerous drugs with impunity
The American Psychiatric Association's DSM5 proposal for ADHD - Making lifelong patients of even more healthy people
Will new changes to Autism Diagnosis leave your child in the cold while filling big pharma's pockets?
Scientists: Creativity part of 'mental illness'