That’s so cool! The vestibular system gets suppressed in space without gravity, the brain “ignores” the random signals, because the fluid in the inner ear is just floating around. The balance system is a very intricate system. Thank you Dr. Amy Welman for sharing this!
The astronaut’s experiment, seen in the video, shows the lack of dizziness after spinning upside down for a prolonged amount of time. Gravity plays a vital role in our positioning and sense of movement.
This video is well worth watching!