Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.
BEIJING, Jan. 29 (Xinhua) -- Some 204.39 million inter-regional trips were made in China on Tuesday, the Chinese Lunar New Year's Eve, according to official statistics.