Peyote Improves Performance on Cognitive Tests?
Researchers this week have found that the herbal substance Peyote which comes from the desert areas of Texas and northern Mexico - is not harmful to cognitive ability. In fact, the study shows that peyote users performed better on cognitive tests than individuals who consume alcohol.
Peyote is used by Native Americans in their natural rites. You might want to read the Wired article by Randy Dotinga.