There's some science on training those muscles, even without upside down drinking. "Dry swallowing" while on an incline seems to do the trick just fine.
replyIn Japan, I learned to drink water upside down to stop hiccups. Works for me, whereas drinking normally doesn't.
replyHow do you get your body to be upside down?
replyYou bend over and curl your head towards your body.
replyDid it work?
reply