The number of cases is still on the rise. As of 2015, 2.5 million people in the UK lived with the disease, according to the Macmillan Cancer Patient Assistance Organization. The number of cases increasing by 3% per year, in other words, there will be 400,000 new cases every 5 years. The above figures show that cancer is not only extremely popular, but also more widespread. But why are more people suffering from this disease?