Gravure model and TV personality Sayaka Isoyama, 25, on Wednesday announced that she will try the Core Rhythms dieting method to lose fat in her thighs, upper arms, hips and belly. Her challenge is ...

I can’t deny that I felt a little ridiculous shaking my hips violently in front of my TV set the first time I did this workout (the quick workout to be exact, since I thought that was all I could ...