Eris' size resulted in its discoverers and NASA labelling it the solar system's tenth planet. This, along with the prospect of other similarly sized objects being discovered in the future, stimulated the International Astronomical Union (IAU) to define the term planet more precisely. Under a new definition approved on August 24, 2006, Eris was designated a dwarf planet along with Pluto and Ceres.
Best Answer: it depends on a few things~...but the longest time a human can stay upside down is 2 days.. If your heart is reasonably healthy and you aren't restricted, then you shouldn't pass out at all, any more than you would laying down or standing up.
The treatment takes place on the doctorâs coach and usually takes just a few minutes to complete. During treatment each head position is held for at least 30 seconds and movements between conducted quickly. The patient may experience vertigo during the epley maneuver. 1  The patient starts sitting upright with their head turned 45 degrees to the affected side.  They are laid backwards with their head hanging 30 degrees over the edge of the couch and the affected ear to the ground.