For the first time ever, a successful treatment has been found for the devastating brain disease, Huntington's. The inherited condition, which resembles a combination of dementia, Parkinson's and motor neurone disease, affects hundreds of thousands of people in the US and Europe. The scientists who developed the new gene therapy, and people who have the disease, say its a huge breakthrough that could give people a better quality of life for decades.

Also: we meet the teacher who's launched a Happiness Project to help her pupils learn about what really matters, and is encouraging others to do the same. We find out about the small actions that have transformed how people feel about a living in a huge public housing complex in Mumbai, bringing a true sense of community. It's Fat Bear Week in Alaska - a time to celebrate weight gain as the beautiful inhabitants of Katmai National Park prepare to hibernate. Plus a new way to bring more poetry into your life; the dogs getting to swim in German public pools; and the man cycling hundreds of miles dressed as a paramedic gorilla. Our weekly collection of inspiring, uplifting and happy news from around the world.

Presenter: Oliver Conway. Music composed by Iona Hampson