Presented by Jenni Murray. The number of women over 50 who are HIV positive is rising. We ask why. Stephen Wynn talks about his new book 'Two Sons in a War Zone' - an account of being a father with two boys on active service. We debate the merits of walking versus running and discuss the rising hemline; the catwalks say below the knee - but will that be enough to end the reign of the high street mini?