To begin with, GD doesn't fit the definition of a disease. GD as a concept began in 1964 when O'Sullivan and Mahan performed a 100g 3hour oral glucose tolerance test (OGTT) on 752 pregnant women and tracked all women with at least two values above two standard deviations beyond the mean to see if hyperglycemic women were predisposed to develop diabetes down the road (O'Sullivan 1964). They were...