Smoking affects not only a man’s sexual activeness, but also the size of his penis. American scientists reached such unexpected conclusion as a result of research. 65 men with impotency problems underwent an 8-week program to end their nicotine addiction. Their penises were measured—in aroused state—before and after treatment, and it became clear that penis size of those who quit smoking had increased. In addition, those who quit smoking were aroused quicker, MIGnews news agency informed.