How Do Astronauts Brush Their Teeth In Space?

One of the very big challenges of astronaut in terms of hygiene is brushing their teeth as we all know that all things might float.

So, how does astronaut brush their teeth on space? ISS commander Chris Hadfield explains how astronauts maintain oral hygiene aboard the International Space Station. The very big question is where are they going to spit afterwards and how will they will clean the tooth brush?

Let us watch in the video as commander of the International Space Station demonstrates how to brush teeth while in the outer space.

After watching the video, what can you comment on how they do it at space? Is it gruesome, isn't it?

Now we know the answer and for some people maybe they will find it a tough job to swallow the paste after brushing on the teeth.