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Animal Study Shows Harmful Effects of Secondhand Smoke Even Before Pregnancy

If you’re looking to become pregnant, you’d best avoid second-hand smoke exposure, as studies now show that negative effects on your baby’s brain development can occur even before conception, according to Science Daily. The study in rats showed that chemical components of tobacco smoke might change the mothers’ metabolism or hormonal status, causing an epigenetic alteration in their eggs. Nearly 40 million U.S. adults still smoke cigarettes, making it the leading...

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