Came here to say that but "arelana" in the comments had a great response:  Um that gif is absolutely retarded. Models would only be 23% smaller than the average female today is because the average size of women has RISEN 19% due to people being unhealthy and overweight. In 2010 the average weight for women was 166 in 1960 it was 140. Now the average height of females in the US is 5'5" and guess what? A 5'5" woman that is 166lbs has a bmi that is overweight.