Why can’t humans stay awake at night and sleep during the day?

Ineed on this app i was at ambitious but then all of the sudden i got put back to about 30 points. is there something i can do about this, because i lost all of my progress in this app.

Which sentence in this excerpt from leo tolstoy’s the death of ivan ilyich suggests that ivan ilyich and his wife couldn’t even agree on how to raise their children?

Read this passage from the online article “top 10 reasons why everyone is doing yoga” by kathryn livingston. what type of propaganda is the author using? why are so many people doing yoga these days? there must be more to it than endorphins; there has to be a deeper reason why 20 million plus americans have fallen in love with this venerable practice. here is my top ten list – and if you’re a yogi, i’m sure you can think of more.