Subtitle: Main Chemicals in Tobacco Smoke
Tobacco smoke is composed of a complex mixture of chemicals, many of which are toxic and carcinogenic. Out of the thousands of chemicals in tobacco smoke, three main compounds-nicotine, carbon monoxide, and tar-are responsible for most of the health risks associated with smoking.
Nicotine
Nicotine is an addictive substance found in tobacco. It stimulates the brain, increases heart rate and blood pressure, and constricts blood vessels. Nicotine can also increase the risk of heart attack, stroke, and other cardiovascular diseases.
Carbon Monoxide
Carbon monoxide is a colorless, odorless gas found in tobacco smoke. It reduces the amount of oxygen in the blood, which can lead to heart and lung diseases. Carbon monoxide can also damage the immune system, making people more susceptible to infections.
Tar
Tar is a complex mixture of chemicals found in tobacco smoke. It is made up of many tiny particles that can lodge in the lungs and cause respiratory diseases such as lung cancer, emphysema, and chronic bronchitis. Tar can also irritate the eyes, nose, and throat and increase the risk of infections.
In conclusion, nicotine, carbon monoxide, and tar are the three main chemicals found in tobacco smoke and are responsible for most of the health risks associated with smoking.