Another podcast that I subscribe to is Radiolab; an NPR, science-based podcast that explores peculiar scientific problems and phenomena. On a recent episode, the credibility of lucid dreaming–the ability to recognize that you are dreaming and subsequently control the plot–was discussed, particularly as it relates to work completed three decades ago in the lab of Dr. William Dement who is well-known for discovering REM sleep and pioneering translational (basic and clinical) sleep research.
About a year ago, I highlighted an article in SLEEP which examined the neurobiology of lucid dreaming of which 5% of the general population (including myself) is able to do. With extensive practice, it has been suggested that anyone can learn to lucid dream. I highly recommend it.