CSA astronaut Chris Hadfield and ISS commander and explainer of all things space in 21st century answers another question with his latest video: how to space work out.

There's a lot of running on a treadmill, deadlifts, squats and more, except, they have to be carefully tied down by a harness and they have to work out 2 hours every day to maintain bone and muscle mass. Check out the video!

[CSA YouTube]