Humans adapt. We live in trackless deserts, on the tops of mountains, in pestilential jungles, in prisons and hospitals. To survive we sleep, for we need sleep like food. We adapt to sleeping in space ...

Going to space is hard on the human body for a number of reasons. The microgravity environment causes muscle and bone loss and leads to fluids pooling in the upper parts of the body. Being in space ...

Sleep deficiency is pervasive among astronauts before and during space flight, and the reported incidence of sleep-promoting medication use is 20 times greater than the proportion of Americans ...

Experiences of sleep and dreaming while living in outer space.

Astronauts have been adjusting to the challenges of sleeping in space for years — and the lessons learned from their zero gravity slumbers will ensure that one day the first crewed missions to Mars ...

The hazards of lost sleep can range from on-the-job errors to chronic disease. People all around the world experience disruptions in circadian rhythm, or the body’s natural regulator for sleep and ...

Russian astronaut Vasily Tsibliyev hadn’t had a good night’s sleep for 12 days. He was being kept awake on purpose, as part of a study about sleeping on board the space station Mir. On the 13th day, ...