Understand The Trip Episodes Available now
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10. Unknown unknowns
10/10 What more is there to learn about psychedelics? Tim Hayward makes a case for curiosity.

9. Sacred plants for sale
9/10 Who stands to profit from the commercialisation of psychedelics?

8. A tipping point?
8/10 Significant barriers exist for research looking at psychedelics. Is that about to change?

7. Fascination and taboo
7/10 Psychedelic drugs have a chequered history. How did wonder turn to fear?

6. Critical periods
6/10 Can psychedelics help the brain to learn things anew?

1. Altered States
1/10 Tim Hayward looks at the science, culture, history - and future - of psychedelics.

5. Message in a bottle
5/10 Tim Hayward travels into the past to better understand today’s psychedelic research.

4. Looking for a cure
4/10 Tim Hayward investigates why people are travelling abroad seeking a psychedelic cure.

3. Stranger things
3/10 Tim Hayward visits the outer reaches of cutting edge psychedelic research.

2. When the drugs take hold
2/10 Tim Hayward investigates the anatomy of a trip.