Billy's Boot Camp is very famous exercise.It created a pop culture phenomenon in Japan in 2007. It's very hard .It has some stage.I did first stage once.So, I was so tired.I had much sweat.It is difficult for me to do all stages.But, I think that Billy's Boot Camp is very effective.Many people try to lose weight, so many people trust this effective. He is a very strong man, because he is laughing when he is doing so hard exercise.
People looks that, and they try to countinue exercise. It is goof effect. Now, Core Rhythms is popular exercise after Billy's Boot Camp. Usually, women do this. In Japan, These kind of exercises create pop culture phenomenons. That's to say, many Japanese people has weight too much.
