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  4. Curtis Jackson
  5. You have to challenge yourself and your muscles. When you...

You have to challenge yourself and your muscles. When you are really regimented, it's the same over and over and you start to get comfortable. Switching up the style of training works your muscles differently.

Curtis Jackson
Challenges, Style, Training
You have to challenge yourself and your muscles. When you are really regimented, it's the same over and over and you start to get comfortable. Switching up the style of training works your muscles differently.