But sometimes, it's good to have someone who will push you even further than you would normally push yourself. So yesterday I 'treated' myself to a personal training session with John 'JJ' Hewitt. I told JJ I expected a proper military-style beasting. He duly delivered!
HIT hurts at the best of times, if such an oxymoron exists. But when you have someone pushing you, urging you on, encouraging you to go further - then it really, really hurts. Each set consisted of six exercises. By the end of the third and final set, I was literally curled up on the exercise mat, gasping from breath, dripping with sweat.
The adrenaline was still coursing through me for hours. I work on the fifth floor of our London building. When I left for my train, I almost decided to stop on the second floor and call the lift to get me down the final two - my legs were that unsteady.
All in all, a very good session. I certainly got what I'd asked (and paid) for!