Risk Factors for Cancer - GCSE Biology

🦊 In this GCSE Biology video, we discuss various types of cancer and their risk factors, emphasizing lifestyle and genetic components. It identifies major carcinogens like ionizing radiation (including gamma rays from radioactive substances and UV rays from the sun), smoking, and alcohol consumption. Specifically, it notes that smoking is a significant risk factor for lung cancer, with over 50 chemicals in cigarette smoke capable of causing cancer, and alcohol consumption can lead to liver cancer. The video presents data showing a correlation between smoking and lung cancer incidence, with graphs and tables demonstrating that as cigarette consumption increases, so does the risk of lung cancer. This correlation, alongside laboratory findings, helps establish causation between smoking and lung cancer.

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