Smokers know very well the harmful effects of smoking cigarettes. It is a habit that gives nothing but health problems such as cancer related diseases. The nicotine and carbon monoxide can raise the heart rate and blood pressure which in turns causes the heart and veins to weaken. Some may have their limbs being cut off of oxygen turning the legs or the arms useless and amputated. Some may find themselves too late pleading for air, experiencing stroke or heart attacks. read more..