A 'miracle drink' made me happier

Deborah Carr suffered from irritable bowel syndrome and anxiety for 10 years until she discovered what she describes as a 'miracle drink' - kefir. It's a fermented milk drink full of live bacteria. We don't know for sure whether it helped, let alone cured her, but Deborah certainly believes it did. And she tells Manuela Saragosa that it not only relieved her physical symptoms, but also improved her mood.

(Image: Deborah Carr with a kefir drink. Credit: BBC)