in a recent WT study article, the rank and file were counseled for talking too much about their health and cures. Some JWs get into some pretty wild treatments, that the WTS feels borders on the supernatural.
Most particulary, you may not do YOGA as this allows the deeminz into your open mind. Yoga is know to be a SPIRITISTIC practice!
However, if you call it Pilates, it's all good.
Lisa