Are you a chain smoker? Then sooner or later you will be having erectile dysfunction. Heart disease, lung problems, strokes and certain cancers haven’t been the only consequence of the bad habit, and now this finding added to the reasons as if those are not enough for men to quit smoking, as a new research shows that smokers with a pack-a-day habit are almost 40 percent more likely to struggle with erectile dysfunction than men who don’t smoke. The nicotine and other vasoconstrictors delivered by smoking close down the blood vessels of the male organ, thus hinders them to achieve or sustain an erection on repeated occasions.​