AI Summary

Intensive breathing exercises were found to cut cerebral blood flow by as much as 45% and modify how brain networks communicate, according to a brain‑imaging study presented at the ECNP Congress in Munich. Study participants described experiences similar to those induced by psychedelic drugs, noting altered perception, vivid mental imagery, a sense of unity and changes in self‑experience. Researchers emphasized that the shift in brain‑network communication, rather than the reduced blood flow alone, appears to drive these altered‑state effects.

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