ddwoodworth

So, interacting with your children is better than letting a TV babysit them. I think the same thing can be said for adults.

Looks like there has been significant research on chronotype (A person's preference for daytime vs. nighttime activities). One study showed "About 1/10 people are actually hard-wired... to be early risers" and "2/10 people are what are known as night owls". So there maybe some proof to your genetics theory. People maybe hardwired to reach peak functionality at different times.   

http://www.kwollity.com/2010/03/are-you-a-late-or-early-chro... http://en.wikipedia.org/wiki/Chronotype http://www.roundtheclocksystems.com/methods5_ctest.html