Time off from digital devices. Find out how a school in England challenges students to stay away from their gadgets ...

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

要远离打鼾，我们要先知道鼾声从何而来。当人入睡后，颈部肌肉逐渐放松，导致上呼吸道变得狭窄，无法让足够的空气进入肺部。由于气体流通受阻，当人吸气和呼气时，上呼吸道周围的软组织就会产生振动，形成鼾声。气道越窄，振动幅度越大，鼾声就越大。另外，鼻中隔偏曲、 ...