The sun rises and sets every 90 minutes in orbit, making it very difficult to sleep soundly because of the absence of normal day / night cycle. To overcome this, the administrator ISS astronauts set a schedule to keep their activities accordingly. ISS onboard clock is set to Greenwich Mean Time (GMT). To keep astronauts remain on schedule, Mission Control call waking. To pass the time they usually play music and similar activities.
Without the compression force of gravity, your spine to grow and you grow taller, typically between 5cm and 8cm. Unfortunately, the extra height can bring complications, which can include back pain and nerve problems.
3. Stop Snoring
A 2001 study showed that astronauts who snored on Earth asleep silently in space. That's because gravity plays a dominant role in the generation of apneas, hypopneas, and snoring. NASA has even recorded the activity of the crew who often snore, but the effects of zero gravity appears to reduce snoring.
In the plane, salt and pepper are available but only in liquid form. This is because the astronauts do not sprinkle salt and pepper on their food in space. Salt and pepper would simply float. Very dangerous because it could clog air vents, contaminate equipment or get stuck in the mouth, eyes or nose astronauts.
The record for the longest mission held by Russian cosmonaut Valeri Polyakov, who completed 438 days (or 14 months) travel in the Mir space station in 1995
The crew of Soyuz 11, Georgi Dobrovolski, Vladislav Volkov and Viktor Patsayev, was killed after undocking from the space station Salyut 1 after only three weeks.
In the absence of gravity, the signal from the system vestibulary and pressure receptors become chaotic. The effect usually leads to disorientation of the body. many astronauts suddenly find themselves just as upside down, or even have difficulty in sensing the location of their own arms and legs. This disorientation is the main cause of what is called the Space Adaptation Syndrome
When they return to Earth, astronauts have to adapt again like experience when they first into space. There is one phase of adaptation a little time for the habit, Some Russian cosmonauts have reported that several months after the flight, they still occasionally releases cups or other objects in the air - and confused when it fell to the floor
Staring out of their space capsules, Apollo astronauts witnessed sights that humans had never seen before. They see the sights of a bright blue earth. They saw the far side of the Moon. They also saw strange flashes of light inside their eyeballs!
While stations such as Skylab and Mir have been equipped with a shower, bath sponge Many astronauts replace using a wet washcloth or towel. This will reduce the amount of water consumed. Each astronaut will also have a personal hygiene kit with a toothbrush, toothpaste, shampoo, razors and other basic toiletries.