Why do female astronauts don't tie their hair in space ??

 Before answering the above question, let me tell 

Why females tie their hair ?? Why don't they keep it open all the time ??

As I have a long hair , I am the best person to tell the reason !!

Managing long hair or shorter one, is a very difficult task.

If untied and if not properly oiled, hair strands just cover the face sometimes closing the eyes too !!!

If hair is not tied, hair will undergo friction and there are chances that it will get cut.

Main problem is the formation of knots in the hair.

If not combed properly, these knots become harder to open.

I always feel sweating if I keep open hair. I always prefer them to tie atlease before going to bed.

Now this is the story we experience on Earth.

In space, hair doesn't fall naturally as it does on Earth because of lack of gravity.

1.  With no gravity pulling hair downwards, there is no practical reason to tie it back  !!!

2.  Since hair doesn't get in their face, astronauts don't feel any discomfort.

Since astronauts don't have access to regular showers , they use no rinse shampoo.

In international space station, evaporated water from their hair is condensed and turned into drinking water  !!!!