The hiccup cure I "invented"

I've passed this cure along to friends and family alike for quite some time. I'd say I came up with it about 5 or 6 years ago. Anyway, it was one of those things where no one told you about it and not a whole lot of people know it, so you begin to think to yourself that you invented it.

Perhaps it is one of those things that get invented many times over but don't have a lot of "staying power" and so they must be reinvented throughout time and across localities.

Anyway, in case I did actually invent this (doubtful), I thought I'd get my claim down in writting. Without further ado, my hiccup cure:

Breathe in deep. As deep as you can. Now try and suck in a little more air. Hold it until such time as you would have hiccuped. You should now be able to breathe out and be without hiccups.

The premise behind the cure is that hiccups involve the regular and involuntary contraction of the diaphram. By fully contracting the diaphram, you have sufficiently disrupted the regularity of the impulse that whatever finicky force gave you the hiccups in the first place has dissipated. I'll admit this is borderline on black magic/old wives tale medicine, but it works pretty well.