Prostate cancer needs research. We have many questions and research is key to providing answers about the disease. As our population ages, growing numbers of men will be diagnosed with the disease.
Over the last 40 years prostate cancer incidence rates in Great Britain have tripled, and three-quarters of cases are diagnosed in men aged over 65 years.
More top news
The PM will sound out the possibility of new free trade agreements with Gulf states for once the UK has left the EU.
In the unexpected announcement on Monday, Mr Key said it was the "right time" to leave politics.
As the Government's Brexit appeal comes to the Supreme Court, here's a look at what you need to know.