People have been warned of hotspots for a genetic disease known as the "Celtic Curse" that can lead to cancer and other serious illness if untreated. A new study has shown that people from the Outer Hebrides and north-west Ireland are at the highest risk of developing haemochromatosis. The disease causes a dangerous build-up of iron in the body and, if untreated, can lead to liver cancer, arthritis and other serious health issues. Scientists have carried out the first study mapping the genetic