Nothing Changed But Her Age

In my earlier post, about the little girl, absolutely nothing changed in two months, other than she was now 3-years 10-months old and before was 3-years 8-months old. I charted the hypothetical little girl at 3-years 8-months as standing 38" tall and weighing 34.5-pounds - placing her in the 84th percentile for BMI for age, the top of the "normal healthy weight" classification. With no upward growth and no weight gain in two months, this same child would now be in the 85th percentile for BMI fo