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PostPosted: Tue Apr 11, 2006 9:20 pm 
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Joined: Mon Feb 07, 2005 6:39 pm
Posts: 2987
Location: Toronto
This one's interesting....

Prenatal smoking boosts teen girls' asthma risk
Reuters Tue Apr 11, 2006 4:22 PM BST
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NEW YORK (Reuters Health) - Girls whose mothers smoked heavily during pregnancy are more likely to have asthma symptoms at age 14, a study from Australia shows. However, the researchers found no such link between a mother's smoking and boys' asthma risk.

The gender difference may be because boys mature at different rates than girls ...
For full story see ... ived=False

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PostPosted: Wed Apr 12, 2006 11:30 am 

Joined: Mon Sep 19, 2005 6:31 pm
Posts: 61
Location: Ontario
... and smoking can also have repercussions across generations, according to this 2005 study:

Smoking May Be Harmful to Offspring
USC researchers find tobacco’s effects may be passed across generations, resulting in asthma for children and grandchildren.
By Alicia Di Rado

“The findings suggest that smoking could have a longer-lasting impact on families’ health than we had ever realized," said the study’s senior author, Frank D. Gilliland, professor of preventive medicine in the Keck School of Medicine.

A child whose grandmother smoked while pregnant may have doubled the risk of developing asthma compared to a child whose grandmother did not smoke, according to researchers from the Keck School of Medicine of USC.

Rest of the story is at this link:

The scary thing about generational effects is that it seems to negate the positive impact of making good choices for your own children. Check out this finding in the above study: Even if a child’s mother did not smoke while she was pregnant – but the child’s grandmother did – the child had nearly double the risk (1.8 times) of developing asthma.

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PostPosted: Wed Apr 12, 2006 3:56 pm 

Joined: Tue Mar 22, 2005 6:53 pm
Posts: 1454
Location: Canada
I've heard something like this before---I think the study of how genes can be altered by the environment is called "epigenetics" or something. I'd be interested in knowing more of how this works--does smoking damage the DNA? How do we inherit damage from smoking?

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