The Breakaren Meditatingth of Fire is a great way to detoxify. Its name comes from the purifying heat generated in the nostrils by the fast movement of air in and out. It is also a great way to strengthen the core.

Sit on the floor with legs crossed. You can sit on a chair if you prefer, just make sure that you are sitting straight with you
r feet firmly on the floor. Place your hands on your knees. Breath rapidly in and out through the nose. On the out breath pull your tummy inwards.