Those who sleep little are more selfish

Some more and some less, we have all been there: someone in the house slept little and all the others paid the price, having to put up with the bad mood and lack of collaboration. Just like a bad night could make a person bad. But science shows that, at least in part, this is indeed the case.

A study from the University of California at Berkley found that people are less generous and selfless after getting little sleep.