Smoking Mothers' Embryos' Grow More Slowly, Nantes University Hospital Study
7/6/2012 10:22:56 AM
Time-lapse photography has shown that embryos of smoking women develop more slowly. French academics in an IVF clinic took regular pictures of an egg from the moment it was fertilised until it was ready to be implanted into the mother.
At all stages of development, embryos from smokers were consistently a couple of hours behind, a study showed.