next episode of the whole story with anderson cooper. so many mental health issues are based on a rigidity, a stuckness. the psilocybin experience helps kind of break that up. that doesn t mean it streets everything in psychiatry, but i think it is realistic to think this could be a breakthrough in mental health care. reporter: sounds promising, but by no means a cure-all. psychedelics may not be entirely safe for people with a personal or family history of psychosis. bipolar disorder may have another manic ep-sode. the risks come in psychology. without support in some cases it could be destabilizing.