Yes, thanks for posting this info. I referred to this when a 3rd grader asked what happens to the body to make it faint, as a girl in glee club had fainted onstage earlier in the day. The kids also wear a similar harness at our local YMCA to do their rock climbing stuff so it also became more interesting to them.

I was thinking that there must be an effort somewhere to design a safer mechanism to prevent falls without endangering blood flow, don't you think?