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A new blood test for Alzheimer's appears to be able to spot the disease up to 10 years before symptoms develop. It is hoped it could lead to earlier treatment and slow progression of the disease, giving patients better quality of life for longer. Also, the 50-year-old X Games champion, Andy MacDonald, who is aiming to outdo the teenagers in Olympic skateboarding. How Platypus Rescue HQ is hoping to help the animals make more babies, called puggles. Why a travel blogger in Germany woke up to dozens of messages from students in China. And, in a country famous for its food, what is on the menu for Olympic and Paralympic athletes? Presenter: Nick Miles Music composer: Iona Hampson