Abstract: Utilizing the principles of physics (mass and leverage) and body mechanics, the intent and design of the Ergonomic Body Developer (EBD) is to harness the effects of torque at a given distance from a fixed pivotal point. Other systems require a force (mass) to be applied at the most distal point of the levering appendage (typically the extremities). The EBD is designed to distribute said force equally over the entire levering appendages concurrently with the variability of the masses to gradually condition the body to greater exertion and stamina, reducing or eliminating collateral damage due to overzealous miscalculations. It is designed to target specific muscles or muscle groups and to eliminate the necessity of specialized equipment. The EBD utilizes natural, body motions in such a manner that each activity becomes an exercise. The key is the vast variability of the masses and their interchangable positionings on the body.