Divorce, in general, is not a new concept. Divorce on a grand scale among people over the age of 50, however, is. The phenomenon is called "gray divorce," and it is on the rise. Sociologists from Bowling Green State University say the reason this is happening is two-fold. People are living longer than ever now, and they simply grow apart. Furthermore, women are more capable of surviving financially on their own now, which could account for the more than half of all divorces being initiated by women.