We think of astronauts as leading very dangerous and exciting lives when they are out there in space, pushing the boundaries of human exploration ever forward. And, of course, all of that is true, but life in space (specifically, aboard the International Space Station) also offers a lot of downtime. When they are not working, astronauts still need to live their lives, which are actually a lot closer to ours than you might think. Most of the everyday things you and I do at home, they also do them aboard the ISS. However, the lack of gravity surely adds a layer of difficulty to even the simplest of tasks.
Let’s say you’re an astronaut and you just woke up. You would probably want to go through your morning routine, which might include trivial stuff such as brushing your teeth or washing your hair. Here’s where lack of access to running water makes things a bit tricky. Since you are living in a place with billions of dollars worth of electronics, water floating around is probably not a good idea. Therefore, you don’t get the benefits of a running tap or shower.
Astronaut brushing his teeth