Psychological studies suggest, that when you can't stop thinking of someone, it's more likely because they're thinking about you as well.

In china teachers allow children to sleep in class for 20 minutes to learn better !!!

Researchers have discovered that classroom naps support learning in preschool children by enhancing memory. Naps help the kids better remember what they are learning in preschool. Study results may be found in the journal Proceedings of the National Academy of Sciences. Children forgot significantly more item locations on the memory test when they had not taken a nap (65 percent accuracy), compared to when they did nap (75 percent accuracy). Thus following a nap, children recalled 10 percent more of the test locations than when they had been kept awake. Midday naps may be an important tool to help preschool-age children learn .That's why In china teachers allow children to sleep in class for 20 minutes to learn better !!!