I have linked a video posted by someone on MdDS Friends FB site. You must take the time to watch. At the end the moderator says we must challenge our vestibular systems. He’s so right. The GyroStim certainly does just that. I didn’t realize till I went in May and just last week it was a challenge. I just thought of it as fun. Ok not fun but it did challenge my vestibular system and that’s why I think it worked for me. For those with family and friends who don’t believe you have an illness, this is a MUST watch!!