I'm ignorant about the whole body surface thing. I don't understand how this calculates the dose. Once you do the formula to get the body surface area, what is the correct dose for the area given? This is something that has never been mentioned to me before and I'd like to understand it better. I've always just trusted the dosage my endo told me to give... and that has always worked out perfect. My daughter's meds have been very well monitored and maintained and has never had any growth problems. Still, I'd appreciate knowing how this works. Sorry if this seems like a stupid question, but I really don't get it.