Jaclean passive exercise "chi swing" machine in excellent shape. Some info off the website (www.usjaclean.com) in case you've never seen such a creature:
The gentle movement of the spine that results from using the machine encourages flexibility, heals the nervous system, and provides a powerful lymphatic massage.
Chi swing machines are used by people with chronic muscle and nerve pain such as Fibromyalgia, since it stimulates circulation and helps to bring balance to the flow of energy throughout the body.
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