Horizon · SEASON 16
The Keys of Paradise
Episode 3 · 1979-03-12

- Documentary
Episode overview
Horizon follows the discovery of a chemical in the brain which has morphine-like properties.
60 minutes
Season 16 episodes
1. The Forever Fuel1979-02-26
2. In Search of Pegasus1979-03-05
3. The Keys of Paradise1979-03-12
4. Sweet Solutions1979-03-19
5. Bronze Age Blast-Off1979-03-26
6. The Real Bionic Man1979-04-02
7. A Mediterranean Prospect1979-04-09
8. Elements of Risk1979-04-23
9. Mr. Ludwig's Tropical Dreamland1979-04-30
10. Where Nothing Happens Twice1979-05-07
11. Journey Through the Human Body1979-05-14
12. The Fight to Be Male1979-05-21
13. The Robots Are Coming1979-05-28
14. Mexican Oil Dance1979-09-24
15. Tracks on the Oregon Trail1979-10-01
16. The Race to Reshape Cars1979-10-08
17. Dragnet for Diabetes1979-10-15
18. The Lost Waters of the Nile1979-10-22
19. Survival of the Fastest1979-10-29
20. A Touch of Sensitivity1979-11-05
21. A Treasury of Trees1979-11-12
22. Darkness Visible1979-11-19
23. Uranium Goes Critical1979-12-03
24. The Fat in the Fire1979-12-10
25. Decade1979-12-17