Transform your fitness journey with Mark Lauren, Special Operations trainer and bestselling author of You Are Your Own Gym (Fit ohne Geräte). Achieve lasting fitness with smartly designed exercise programs that challenge you at just the right level. Gain strength, lean muscle, and mobility through carefully selected exercises that improve movement quality and joint alignment. Available in English & German. PREP PROGRAM (easy) 12-weeks of light workouts to improve hip, spine, and shoulder