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

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

让七年后撞击地球的小行星偏离轨道的计划被废弃，因为经计算撞击点会在利物浦。 Planned attempts to divert an asteroid which will collide with the Earth in about seven years have been abandoned after it was calculated the point of impact ...

跑走结合法是一种训练策略，其前提是，在感到疲倦之前通过短时间的步行， 可以避免过度疲劳，从而应对更长的距离。因为跑走结合对身体的负担可能比持续跑步小，许多人发现他们在跑步之间的恢复速度也更快。

Muscle Atrophy: In microgravity, the muscles do not have to support the body’s weight, leading to significant muscle weakening. Astronauts typically lose about 1% of muscle mass per month. For example ...