Sleeping Hours
Everybody must sleep at least 8 hours a day.But many people seem to think
that sleeping is merely wasting time, and try to reduce their sleep time.Some experts say that we can live healthily with three or four hours sleep, emphasizing that what is important is not how many hours we sleep, but the quality of the sleep.
Another interesting thing about sleep is how to interpret our dreams. Can we understand what our dreams mean in a scientific way?Do they have any meaning in our real life, or are they just pent-up wishes, as Sigmund Freud said?
