Tuesday, March 12, 2013
The Man in the Cave
His personal experience illustrated a rhythm a little longer than 24 hours, between 24.5 and 25. However, his further experiments and those of others demonstrated people falling into a 48 hour cycle.
In an interview with Cabinet magazine, Siffre pointed out
"The forty-eight-hour cycle is a fact. I observed this phenomenon, and I’m sure of this finding, but nobody understands what could be responsible for such a large desynchronization of the sleep-wake cycle"
Further studies of this type have been ceased due to the ethical issues involved with isolating a person in a cave for extended periods of time with limited contact.
The interview with Siffre can be found here.