To manage her stress and fears, Andrea Bird, who has terminal cancer, uses psychedelics, which are seeing a sudden re-emergence in Canada as a possible treatment for mental health conditions such as anxiety and depression. The 60-year-old Canadian was diagnosed with breast cancer in 2012. Despite aggressive treatment, the disease returned five years later, spreading to her lungs, bones and brain. As she tries to cope with her incurable ailment, Bird uses psilocybin, the psychoactive substance of hallucinogenic mushrooms that was banned in the 1970s.