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cancer and what is it all about?

Many people believe that getting cancer is purely down to genes, fate or bad luck. But through scientific research, we know that our risk actually depends on a combination of our genes, our environment and aspects of our lives, many of which we can control. Cancer is caused by damage to our DNA, the chemical instructions that tell our cells what to do. Things in our environment, such as UV rays, or our lifestyle, such as the cancer-causing chemicals in tobacco, can damage our DNA. This damage builds up over time. If a cell develops too much damage to its DNA it can start to multiply out of control – this is how cancer starts.

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