McDonalds started in 1948. Ding Dongs in 1967. Video games in 1972.
Do you even know what your point is?
The point he/she was trying to make was a "few extra pounds" started in 1949, "Overweight" started about 1967, and "obese" came into play around 1973... so all the girls pre-1948 were slim and barbie-ish...