Placentas are one of the main players during pregnancy. In fact, a pregnancy cannot proceed without a healthy placenta. So just how much do most women know about this mysterious, but oh so important, part of pregnancy?
Some researchers believe the patch reduces a fetus's exposure to many of the toxic chemicals other than nicotine found in cigarette smoke, while other studies suggest that nicotine replacement doesn't help pregnant women quit smoking, and in fact, the nicotine itself can endanger a fetus.
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