Since some of this is completely new to me so I have some reservations about this report. Perhaps some of our experts like Andre, Nereid, or Bystander can help to shed some light on this story? [not to leave anyone out but they come to mind ] http://www.wired.com/wired/archive/12.04/view.html?pg=4?tw=wn_tophead_5 Also, a question about sleep cycles: I find that if I allow myself to follow a natural cycle [I work at home a lot and at times I have a great deal of flexibility in my schedule] I tend to run about a 26 hour day. I asked a medical doctor about this once and he said that most people will do this. Does anyone know what governs this cycle? At first I assumed that this related to the changing length of the day - that we evolved with an average 26 hour day or so - but obviously this appears to be going in the wrong direction.