In what amounts to a scientific breakthrough a combined team of scientists from Britain and the United States have located two genes linked to bipolar disorder. Professor Nick Craddock, of Cardiff University's school of medicine, who lead the research says, "the findings will help people to avoid saying bipolar is just the way some people are, or that they should be able to control it . . . it puts it on a parallel with other diseases, such as heart disease and diabetes."

In one of the...