Susan Powter of ‘Stop the Insanity!’ ’90s infomercial fame is returning to the fitness space after a “scary” 30-year disappearance from the spotlight.

Powter made millions with her 'Stop the Insanity!' fitness infomercial in the '90s, but lost it all. Curtis, who's producing a documentary on Powter, helped renew the fitness guru's faith Susan ...

Susan Powter is stopping the insanity. The '90s fitness guru revealed in an interview with People magazine published Wednesday that she lost millions of dollars after the success of her iconic ...