Legions of fans shelled out $79.80 for her Stop the Insanity! program of recipes, workout tips and motivational audio cassettes — and they made Powter a best-selling author three times over.

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 Courtesy ...

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 ...