I've signed up to be part of a MS study. It's taking 3 weeks of Tai Chi and seeing how to that helps people with MS and improving balance.
I did a study a few years ago at the same place. I've lost feeling in the bottoms of my feet since then. The first time, I could feel the smallest bristles, and this time, it was like the 4th and 5th ones I felt. That's sad.
Tai Chi though, is going to be very cool!