I don't know if this is the right place to put this post, but i felt to give some knowledge to those are not aware of the link between smoking and interfility. Incase the moderator finds this thread to be suitable elsewhere, feel free to move it.
Extensive research has been done to find the link between Smoking and infertility, as a result of increased rate of interfility amongst those who smoke. The Advanced fertility center of chicago, one of the top research centers for infertility has presented the fact that Nicotine has dangerous effects on the maturation of eggs, on ovulation rates and fertility rates. The study cleared showed the chromosomal abnormalities in eggs that were exposed to nicotine. Their study essentially brought out some amazing facts which are important to ponder over. Another British research center has shown that there is twice the risk of being infertile (even after stopping contraceptive for 5 years) for a smoking couple than the non smoking couple. Another british research shows that smokers have 40% less probability of having children than their counterparts. They also laid stress on the fact that both smoking and passive smoking was responsbile for the 5000 miscarriages that happened this year and continues every year. Smoking also take the blame for 120000 cases of male impotence in men who are between the ages 30-50.
The bottom line is that most of us don't realise the cause of infertility, although its in front of your eyes. At times, try to ponder over what i said above.