- $72 for two personal-training sessions ($240 value)
Two personal-training sessions at Mike Todd Fitness might help begin muscle building, which causes soreness. As anyone who has experienced post-workout soreness could intuit, bicep curls are actually a form of controlled damage, making thousands of miniscule tears to the muscle tissue that beckon autoimmune cells to show up alongside testosterone and other hormones. The white blood cells help switch on satellite cells, which are similar to stem cells. Before they’re activated, satellite cells aren’t doing much—instead, they lie dormant around muscle fibers until they’re called into action to repair torn tissue.