Resetting Sleep Cycle Fast

My friend SC on Facebook posted this link to How to Naturally Reset Your Sleep Cycle Overnight. Apparently there are two body clocks, one based on daylight and one based on our eating cycle. The eating cycle resets after a long fast, and overrides the daylight-based one. The article suggests that if you don’t eat for 12-16 hours during the time you want to stay awake, then you can change your sleep cycle in one day. I haven’t tried it, but it sounds like an interesting idea.