Thursday morning, 7am

I am in no way a 'morning person.' Having to wake up at 6am again, after a couple of weeks of late nights and late mornings, is hard. I read somewhere that the human biological clock isn't based on a 24-hour cycle but seems to have been set at some point when the earth's rotational period was closer to 25 hours. That certainly makes sense to me. Left to my own devices, my period of wakefulness does seem to slip later and later each day. Not sure where I read that though, so it could be complete crap.