Like steel

A friend has just completed a difficult set of hill sprints - in the desert!

Aneke preparing for her Three Peaks with some desert running

Exhausted, drained, sick and shakey I asked how she felt -
 'like steel' was her reply.

Your workout may feel tough at the time and you may feel that you just cant do it, but, with determination, you will succeed and that feeling that she describes will hit you and you will feel like you can run through walls.