Any age. Introducing body work to a young horse has benefits. For example, getting a solid baseline for their “normal” body before they are asked to work. Young horses will also benefit from being touched all over during a bodywork session. Older horses, geriatrics, have most likely adapted to conditions that they have been living with. The goal with bodywork on older horses is to keep them comfortable and functionally sound, not to “fix” them at an older age since their body has already adapted to chronic issues they have.