Scientists have unravelled one of the secrets of a plant used in traditional Chinese medicine.
The Chinese skullcap - known as Huang-Qin - is traditionally used for fever, liver and lung problems.
Scientists have discovered that the plant uses a special pathway to make chemicals with potential cancer-fighting properties.
They say it is a step towards being able to scale up production to make new drugs
http://www.bbc.co.uk/news/health-35997595