Sports, fitness, exercise, and nutrition have long been her driving forces in life. Karyn used to be the strongest woman in the world. Marshall hailed as a world-record holder in the sport of weightlifting, setting over 60 world and American records. In 1985, she was the first woman to ever Clean and Jerk over 300 pounds; 303 pounds to be exact. In the year 2011, Karyn found a lump in her left breast and was diagnosed with stage IIA Triple Negative Breast Cancer. No longer was she lifting weight for the world, but the weight of the world came down on her. After successfully completing treatment and she got back into lifting weights. Marshall is a pioneering woman and an exemplary voice for all women in powerlifting and functional fitness.