[dijit]

There are numerous studies into 'night owls' and such a people do exist, I was actually reading about this earlier due to the fact I've always been more active, alert and mentally capable when waking up at 11-13 as opposed to times earlier, and the energy lasted throughout the day.

I think the Wikipedia page on night-owls explains in greater detail the exacts of what is essentially a genetic predisposition, the sources hold up too.

Anecdotally, I've tried many diets, I thought I had insomnia at one point and the doctors did not disagree, taking pills does not make it easier- you feel more disconnected and my usual grumpy demenour is more apathetic.

As with most things YMMV