Advertisement

Want Another Reason Not to Smoke? Think About Your Grandchildren

Want Another Reason Not to Smoke? Think About Your Grandchildren

“Where there’s smoke there’s fire” is a phrase that’s been around for a long time; it means that if it looks like there’s something wrong, then there probably is. So, picture a pregnant woman smoking. What’s wrong with this picture? Maybe more than you think—she’s putting her daughter’s daughter at risk for autism spectrum disorder (ASD).

A study from the University of Bristol has shown some pretty conclusive epidemiological evidence that grandmothers who smoked while they were pregnant saw greatly increased rates of ASD in their granddaughters.

As strange as that sounds, listen to this: The university researchers looked at 14,500 participants of the Children of the 90s Study and found that if a girl’s maternal grandmother smoked during pregnancy, she was 67 percent more likely to display behaviors linked to autism, such as poor communication skills and repetitive behaviors, and she had a 53 percent increased risk of landing squarely on the spectrum. Paternal grandmothers smoking during pregnancy showed no associations.

How could this happen? The researchers offered two possible explanations. DNA damage caused by smoking is transmitted to the grandchildren, or it alters the grandchildren’s gene-moderated response to an environmental pollutant they happen to encounter. Something like a hormone disruptor in plastics (BPA) or a pesticide (glyphosate used on GMO crops) or a combination of environmental pollutants. And that cascade leads to ASD problems.

Bottom line. Male, female, young, old, don’t smoke—anything. Once researchers go back another generation, they might find the original problem was great-grandpa smoking.

Medically reviewed in August 2019.

Hawaii Health Alert: Would You Know If Your Child Is Vaping?
Hawaii Health Alert: Would You Know If Your Child Is Vaping?
If you’re the parent of a teen—or even a “tween” who’s navigating middle school—you need to know about e-cigarettes. Odds are your child not only know...
Read More
Do smokers digest cigarettes?
Discovery HealthDiscovery Health
Cigarettes are more about ingestion than digestion. When you smoke, your body takes in chemicals and...
More Answers
Kicking Butts: 50 Years of Progress
Kicking Butts: 50 Years of ProgressKicking Butts: 50 Years of ProgressKicking Butts: 50 Years of ProgressKicking Butts: 50 Years of Progress
Take a look at 10 anti-smoking milestones since the first Surgeon General’s report.
Start Slideshow
5 Keys to Make Healthy Changes
5 Keys to Make Healthy Changes