Paul Russell's pop hit "Lil Boo Thang" plays over the loud speakers as Dawn Snapp finishes preparing her spacious studio on the southside of town. She turns on a few floor fans, adjusts her headset ...

Editor's note: A previous edition of this story erroneously stated Kelly Sweeney's current role in Jazzercise, Inc. Paul Russell's pop hit "Lil Boo Thang" plays over the loud speakers as Dawn Snapp ...

The founder of Jazzercise stays active and energized at age 80 by dancing and lifting weights. Judi Sheppard Missett says she's motivated by a drive to help others enjoy exercise. Her diet for ...