“Supports” provided by conventional “ergonomic” chairs actually prevent your muscular support system from freely expressing itself. Unfortunately, over time static sitting leads to a weakening of the core musculature, a situation that actually makes it difficult to sustain optimal posture. A downward spiral ensues with ever weaker core muscles requiring ever more support when sitting. The QOR360 chair breaks this cycle by subtly engaging the core muscles while sitting. Although reconditioning may take a few days to a few weeks, typically people are comfortable sitting all day on a QOR360 chair within a few days.