What I have noticed with the machine is that I am walking with more vigor going up and down the stairs due to the brain and eye connection that has improved significantly. Being 67, us old people tend to walk like robots. Less vigor, shuffling our feet and taking small strides because we are being more cautious. With using ZAAZ I am able to walk better. I am excited to see what else I will improve on and to be able to talk and share my improvements with you.