Course: BIO 158
Many people around the world believe that the only solution to their problems are solved by smoking cigarettes. Men and women experiment with smoking a cigarette to calm stress anxiety, but they do not realize that they can become an addict to nicotine. Most importantly smoking is dangerous for the whole system of the human body. Tobacco smoke contains more than 50 chemicals that cause cancer. Also, contains nicotine, which is highly addictive drug. When tobacco is smoked for any person, this nicotine causes physical and psychological dependency. According to the World Health Organization (WHO) “Estimates that each year tobacco causes about 6 million deaths”, (WHO). That means, tobacco use us the single greatest cause of preventable death globally. In this project, I will try to explain more details How the tobacco affects the human body by the Respiratory system, the Cardiovascular system and the Digestive system.
One of the most important parts of the respiratory system is the lungs. Smokers have difficulty breathing because smoking is damaging the lungs with either a viral infection. For example, smokers can give them chronic bronchitis, their lungs are quite affected. If a smoker has asthma, they can have more often and attack results. A smoker causes a lot of coughing all the time because they have mucous from tobacco can cause you an emphysema that is cancer of the lungs. Children whose parents smoke are more risk to coughing, and asthma attacks than children whose parents don’t. They also tend to have higher rates of pneumonia and bronchitis.
Another problem with smoking destroys the tiny air sacs, or alveoli in the lungs that allow oxygen exchange. When you smoke, you are damaging some of those air sacs. Alveoli don’t grow back, so when you destroy them, you have permanently destroyed part of our lungs. Another effect within the respiratory system is the mouth. Smokers tend to have a lot of cavities and can lose parts of their teeth at an early age. Also, you can get cancer in the mouth and throat caused by tobacco.
The second parts of...