In some parts of the world mushrooms have had a central role in religious ritual ceremonies. Ethnomycological studies among the Indian tribes of Mexico - the Aztecs and the Chichimecas - revealed the mushrooms to be hallucinogenic.

This book covers the psychedelic ayahuasca tourism in Peru, with its facet-rich psychological, pharmacological, anthropological, and sociological aspects.

Enhancing Human Capacities is the first to review the very latest scientific developments in human enhancement. It is unique in its examination of the ethical and policy implications of these technologies from a broad range of perspectives.

Edited by Dan Joy. Book I: The Story Continues This is the continuation of the love story from PIHKAL: A Chemical Love Story with a blend of travel, botanical facts, scientific speculation, psychological and political commentary.

Numerous treatments have been proposed. But the treatment of itch remains difficult and it depends on its etiology. The understanding of the pathophysiogeny of itch is necessary.

A collection of essays examining the current status of the therapeutic potential of hallucinogenic substances, exploring how the drugs can be used to effectively treat a wide range of conditions.

"Offers comprehensive, definitive information on all of the essential mineral elements--focusing on biochemical and physiological processes.