It causes the heart to beat faster and blood pressure to rise. Experimental smoking usually begins the habit. Next comes occasional cigarette smoking at parties, on weekends, with friends, or when trying to lose weight. This is the most dangerous stage because it usually leads to an addictive phase, when teens become regular smokers. There is no safe amount of smoking.
Every cigarette causes some harm to the body.
Once smoke touches the lips, it begins to attack living tissues, and it continues its attack wherever it goes. Cigarette smokers have less ability to carry oxygen to the rest of the body. This is why smokers have less endurance when running or participating in sports. Smokers also get wrinkles at an earlier age. The smoke changes the elasticity of the skin and fine lines appear around the eyes.