People that say they "changed from night owl to early riser" (or vice-versa) have never been night owls in the first place, but something else was the cause (diet, screen time, etc).
Chronotypes are genetics-based so no amount of wishful thinking will make you a night owl or an early riser (though obviously you can try and force this with alarm clocks / melatonin... to your own risk).
Another book worth mentioning is Why we sleep by Walker. It has it's flaws but overall does a good job at explaining the importance of sleep.
It really is tough being a night owl. No one makes fun of the person works from 6-3p, but you might get fired in a lot of places you tried to set your working schedule to 11p-8p. And what we do to our middle and high schoolers is just wrong. I remember to catch the bus I had to be outside by 645a, which meant waking up at 615a. Your average teenager's body doesn't want to wake up before 8 or 9a!
BTW- If you're an early bird who thinks all of us night owls are lazy, please read Internal Time (http://www.amazon.com/Internal-Time-Chronotypes-Social-Youre...) and then cut us some slack. If you are night owl you might want to pick it up to make you feel better :)
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