Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

英国考文垂大学有一项研究，让受试者在相同的时间内泡热水澡或骑自行车，结果显示，尽管骑自行车消耗的身体能量更多，但受试者的核心体温和心率上升是相当的。研究人员指出，定期泡热水澡的健身效果实际上同散步、慢跑和骑自行车相仿。

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...