Video appunto: World of Sleep
The World of Sleep
Sleep is something that we all do, but we actually know very little about it. Scientists generally agree that sleep is very important and that we do less of it today than we used to. Indeed, in earlier times, particularly in agricultural and hunter gatherer societies, people generally woke up at sunrise and went to bed shortly after sunset, as daily activities before electricity often required daylight, and agriculture in particular is dependent on the sun and its cycles.