Some questioned the merits of performing the ritual at a global sports event, with others calling for respect of indigenous culture.
After exhausting all other options, James Freeman spent ten months attempting to fix himself with the native plants of the Amazon.
Follow Hamilton Morris as he journeys through a Salvia divinorum ceremony in the forests of Oaxaca.
If Mark Haden has his way, Canada's government could start regulating shamans and shroom dealers.
In the middle of the ayahuasca industry boom, we wanted to find out what life's been like for one of the local shamans using the mind-bending medicine to heal people.
Ayahuasca can be a bad trip, but it doesn't get worse than this.