How does it work? The Shred Plan is based on “diet confusion.” This principle is modeled after a similar strategy in exercise called muscle confusion, which is used to help break through plateaus of muscle growth. When you do the same types of exercises at the same times, your muscles acclimate to the stress and your progress stagnates. Muscle confusion dictates that people work their muscles in different ways for varying durations of time. By “confusing” your muscles, you can trigger their sustained growth and continue to move toward your fitness goals.
Here's something else most people probably don't know: Fidgeting is good for you. It's considered a nonexercise physical activity, and it's an important way to burn energy. You get more health benefits if, in addition to exercising, you are a more fidgety, more active person the rest of the day. This means gesturing while you're talking, tapping your foot, just moving around.