The Keys of Paradise
- Episode aired Mar 12, 1979
- 50m
![Horizon (1964)](https://m.media-amazon.com/images/M/MV5BYzEwYmJiZDgtYTliMi00ZDA2LWEwNzEtYmZjMDZlYjFmMWVkXkEyXkFqcGdeQXVyMTA4NzY0NTU@._V1_QL75_UY281_CR1,0,190,281_.jpg)
Current research into endorphins, how they work and their affect on the brain.Current research into endorphins, how they work and their affect on the brain.Current research into endorphins, how they work and their affect on the brain.