There may be five kinds of diabetes, not just types 1 and 2

Most people who know about diabetes think there are two kinds: type 1, which you are born with, and type 2, which you get later in life from eating too much. This isn’t quite right, since the two types can occur at different life stages and for a number of reasons, but the broad distinction is well established in the public’s mind.

Now some doctors want to change all that and break the disease down into five subtypes, each with its own set of risk factors,…