James Cracknell OBE is a British double Olympic gold medallist rower. He knows about training hard, and then – after normal men have gone home for dinner – training some more. He also knows about growing hair and likes promoting that in this video. If you ignore his love of shampoo and listen to his training tips you'll realise he can actually help.

We're going to give it a go to see how we fair, join us and let us know how it went in the comment box below. Your girlfriend will thank you for it and maybe even start buying your copy of FHM magazine for you.