21 days ago I began a Core Detox 21 Challenge. At that point I felt sluggish & fed up, missing the routine of regular group exercise & lack of motivation with no events to train for. The Core Detox Challenge provided structure for both nutrition & regular HIIT workouts, which were enjoyable & just the right side of hard! I have toned up more than I imagined, I've lost weight & my BPM has dropped but most importantly I feel 100% better both physically and mentally. Thank you Olga"