<p>Some men buy a motor bike, some grow a beard, but I'm marking the the official arrival of middle age by running 26 miles.</p> <p>On 10 April I'll be running the Brighton Marathon, so much more exclusive than London.</p> <p>I'm running for Breakthrough Breast Cancer.&nbsp; Almost worse than the pain of all those miles is the skimpy pink vest I have to wear.</p> <p>So please donate to the good cause.</p>