Cancer is a complex group of diseases with multiple possible causes. Here's an overview of what we know about the causes of cancer:
- Genetic Factors
Cancer can be caused by genetic mutations that may be inherited or occur after birth due to environmental factors. These mutations can lead to uncontrolled cell growth and tumor formation.
- Environmental Factors
External causes, known as carcinogens, can include:
- Physical carcinogens like radiation and ultraviolet (UV) light
- Chemical carcinogens like cigarette smoke, asbestos, alcohol, air pollution, and contaminated food and drinking water
- Biological carcinogens like viruses, bacteria, and parasites
- Lifestyle Factors
According to the WHO, lifestyle factors such as tobacco use, alcohol consumption, high body mass index (BMI), low fruit and vegetable intake, and lack of physical activity can contribute to cancer risk.
- Age
The risk of developing cancer generally increases with age due to a buildup of risk factors and less effective cell repair mechanisms.
As for research papers by Tamsil Shahezad Khan, editor and journalist, specific research papers on cancer authored by him. He is noted for his contributions to objective reporting on science, health global issues, including human rights and peace.
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