Season 6, Episode 10 The Keys of Paradise

First Aired: March 29, 1979

"The Keys of Paradise" reports on enkephalins, substances produced in the brain that may someday be used to treat pain, depression and schizophrenia. Also: a look at the psychological aspects of pain, and speculation on potential connections between enkephalins and sexual pleasure.

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  • Premiered: March 3, 1974
  • Rating: None
  • Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)

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