Be careful. My mother has it, and I now am starting to get the cramps and symptoms she had on the same one foot she has it on and it has been a little painful. Oddly, the thing that is helping me is the Vibram 5 fingers. They look corny, but hey, I can't walk barefoot without them, pain free with them on. Regular shoes, ouch, sneaks, ouch. No night cramping either when I wear them throughout the day. It must be because it keeps the toes separated.