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.

最后，"2024 Voyage Awards年度大奖"颁奖典礼的成功举办，要感谢华贸中心提供的场地支持，也要感谢阿布扎比亚斯岛、卡塔尔航空、 吉祥航空 ...