Smoking

There are some effects when people amoke a lot of cigharettes.
one effect is blindness, according to studies published in the Journal of the American Medical Association, people who smoke a package or more cigarettes a day double their chances of developing an ocular degenerations which is the most common cause of blindness in age 65 and older.
Another effect is less physical condition or less oxygen for the organs, because the nicotineincreases the cardiac frequency, and the respiratory pace according to the World Organization of the health.
The last and the most important effect is lung cancer, studies the were done in Spain show that 95% of people with lung cancer are people who smoke or who have stopped smoking.
For these reasons I think that if we have a life without smoking we can enjoy a longer and a healthier life.