Well I’ve never heard of it but it sounds a bit odd to me. I have heard that Dr. Oz is going a bit in the “fuzzy” science direction in order to get ratings. I would guess whoever does this sort of “therapy” is probably going to charge a pretty penny for it.
I’m really not trying to be flippant, but I suppose you could try and stand on your head for a few minutes and see if it helps 
My daughter once conducted a caffeine study for math ability, testing subjects for their aptitude and speed on simple math problems before and after consuming coffee. You could try something similar with people standing on their heads – great party game no ?
Again, not trying to make light of your question…
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