Why do we sleep so late,why?

the Human kind has changed their lifestyle already as the era going up a lot over the years. something This can be prove this shown through phenomenons like the development of technology developed, the emergence of the economy arised, and the improvement of thinking. thought of people improved.

Sometimes, I have asked myself what if I lost my computer and ceilphone cellphone lost and the electricity in my house electricty power went down there.  The answer is i'm gonna I would die because of boring boredom.  Without the new media, I don't know what can I would do in the night.  Maybe reading? Yes, that's the a good way to kill time however, I will would prefer surfing the net than to reading.

Just as the Christmas man said, 'What are you doing getting out of bed so late?'

what I get responsed, 'It's because I'm younng.  I can't sleep early. that's It's a physical problem.

Despite all of the above this, what would can I do in the middle-night?  I can't talk, because my roomates hadve fallen into asleep; I can't make any noise because my roommates had swum in their honey dream <Perhaps you mean they're having their beauty sleep?>; I even can't even breathe, because ....... I don't sleep now! And you?