The growing power of psychedelics in mental health

Psychedelics were used to treat mental health disorders like depression long before peace, love and rock n roll. Now decades on, scientists are reclaiming them as therapies to treat  conditions like PTSD with remarkable results. Dr Paul Liknaitzky is head of Monash University's Clinical Psychedelic Lab and 'Andrea' is one of his patients. For 14 years Louise Herron has been in charge of one of our most important public institutions - The Sydney Opera House. She made peace with the Utzons after a famous falling out over its design and saw off a campaign by Alan Jones to have her fired. Now she’s stepping down on her terms. It’s one of Mount Everest's most ghoulish landmarks. For thirty years the body of a climber known as ‘green boots’ has been a frozen reminder of the perils facing mountaineers as they enter the death zone above 8 thousand meters. Now authorities are planning to bring him down from the roof of the world. Tshiring Jangbu Sherpa has spent years guiding on Everest and leading body recovery missions, giving him a rare insight into one of mountaineering's most challenging tasks.