Touring the Pyramids of Egypt
Touring the Pyramids of Egypt. June 3. I was up at 06:55. My alarm was set for 07:03 which would give me just five hours of sleep. It is incredible how a brain wakes itself up just before the alarm clock even when the brain knows it needs more sleep. How does the brain actually know what time it is when it is sleeping? How does it physically know when 07:03 is to wake you up just a little before?...