Somatics exercise classes and workshops. Workshops and classes mean the same thing, except "classes" usually describes a class that meets weekly or more often for a specified period of time (for example, an 8-week class) or ongoing indefinitely; and a "workshop" generally describes a one-time event taking place over a few hours or days (for example, a 90-minute scoliosis workshop, or a 2-day weekend workshop for athletes injury prevention).