Tummo

A Tibetan Buddhist practice that combines breathing, visualization, and bodily discipline within a wider contemplative tradition. It influenced some modern breathing systems but is not identical to the Wim Hof Method. Tummo means inner fire, and studies of experienced practitioners have shown measurable rises in body temperature during practice. It is traditionally learned from a qualified teacher over a long time within the tradition. Simplified modern versions with forceful breathing and holds carry the same cautions as other intensive techniques.