Whether you are a smoker or not, there is much information about why smoking is bad for you. There are several reasons for this, including cancer, heart disease, and other illnesses. Those reasons will help you to understand why you should stop smoking. Ectopic pregnancy Several studies have shown that smoking can increase your risk of ectopic pregnancy. A new study from Edinburgh University has found that the chemical in cigarettes can trigger a reaction in the fallopian tubes. Researchers analyzed data from a register of ectopic pregnancies . The record included women who were treated between 1993 and 2000. The investigators categorized the women into three groups. The first group was women who did not smoke or had a prior spontaneous abortion. The second group was women who had a medical abortion or had a surgical abortion. The third group was women who had a history of sexually transmitted diseases. The investigators used the Mantel-Haenszel technique to estimate the odds ratio. T...