Join Heather Sprague and Cassandra Jahn for a Class on a new way to gain the strength and flexibility you desire for your dance! THURSDAY JUNE 18th 7pm. Heather is a certified yoga and dance instructor, with additional studies in neurology, functional movement, and healing the spine. Cassandra Jahn is an NASM certified personal trainer and Z-Health practitioner (functional neuro applied to fitness) . They both continue their education in best practices to improve movement and health through different forms of physical training.