Scientists have tested sleep habits in experiments where there was no night or day. The people in these experiments almost always followed a similar sleeping pattern. 2. They slept for one long period and then for one short period about eight hours later.In many parts of the world, people ...
of people are killed in different ways.About 60,000 were killed in 1783 in the south of Italy.Some people say that earthquakes often happen near Volcanoes,but this is not true.The centers of some earthquakes are under the sea. The bottom of the sea Suddenly moves.The powerful forces ...
in just two days, the campers" body clocks had shifted so that their melatonin levels began to rise more than an hour earlier than they did before they left for the trip. By contrast, the body clocks of the group that stayed at home shifted even later over the course of the weekend. ...