Cancer is caused by changes (mutations) to the DNA within cells. The DNA inside a cell is packaged into a large number of individual genes, each of which contains a set of instructions telling the cell what functions to perform, as well as how to grow and divide. When these genes are mutated, they can cause the cell to grow and divide uncontrollably, leading to the development of cancer.

There are many factors that can cause gene mutations, including:

• Inherited mutations: You may be born with a genetic mutation that you inherited from your parents. This type of mutation accounts for a small percentage of cancers.
• Mutations that occur after birth: Most gene mutations occur after youre born and arent inherited.
• Environmental factors: A number of forces can cause gene mutations, such as smoking, radiation, viruses, cancer-causing chemicals (carcinogens), obesity, hormones, chronic inflammation, and a lack of exercise.

Its important to note that cancer is often caused by a combination of factors, rather than a single cause. Additionally, not all gene mutations lead to cancer, and some mutations may be harmless or even beneficial.

While there is no sure way to prevent cancer, making healthy choices like eating right, staying active, and not smoking can help reduce your risk. Additionally, avoiding cancer-causing substances like tobacco smoke and the suns rays can also help reduce your risk.