How can smoking cause cancer?
Understand the Problem
The question is asking for an explanation of the mechanisms by which smoking can lead to the development of cancer. This involves understanding the harmful substances found in tobacco smoke and their effects on the body.
Answer
Smoking damages cell DNA, causing uncontrolled growth and cancer.
Smoking causes cancer by exposing the body to carcinogens in tobacco smoke, which damage or change a cell's DNA. This damaged DNA can lead to uncontrolled cell growth and tumor formation.
Answer for screen readers
Smoking causes cancer by exposing the body to carcinogens in tobacco smoke, which damage or change a cell's DNA. This damaged DNA can lead to uncontrolled cell growth and tumor formation.
More Information
Tobacco smoke has over 7,000 chemicals, at least 69 of which are known carcinogens. These carcinogens can damage cellular DNA, leading to mutation and cancer.
Tips
A common misunderstanding is that only one or two chemicals in tobacco cause cancer. In fact, many chemicals in tobacco smoke are involved.
Sources
- How can smoking cause cancer? - cdc.gov
- How does smoking cause cancer? - cancerresearchuk.org
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