This morning I work up and got up at 5:02AM, almost precisly at the same time as I would wake up on any other day, exept it is Saturday and alarm clock was not set, I live in the suburbs that are super quiet with exeption for constant humm of cicadas.
I have read that people think that they have a biological clock, but really this is some distant train, or other sound giving them a clue to a subconcious time reference. It is hard for me to believe in it considering how quiet the suburbs are.
I will do an experiment and change the alarm to few minutes early and see how my body adjusts.
I do suspect that there could be relation to neighbours air conditioning, however distant and quiet it is, or to a singing bird that just started its tweeting now at 5:20.
