The variability among people in sensitivity to environmental carcinogens is partly genetic.

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Genetic factors can influence an individual's susceptibility to cancer-causing substances in the environment. Some people may have variations in genes that affect the way their bodies process and eliminate toxins, making them more or less vulnerable to developing cancer. Additionally, genetic alterations may affect the functioning of cellular pathways involved in DNA repair, cell growth, and apoptosis, which can increase or decrease the risk of cancer. However, environmental and lifestyle factors, such as exposure to tobacco smoke, pollutants, radiation, and unhealthy diets, also play a significant role in cancer development and interact with genetic variations to modulate individual risk.

The Variability Among People in Sensitivity to Environmental Carcinogens Is