Jill’s first childhood memory is kicking a football, and she’s played sport all her life.  She’s 38 but how will elite sport have impacted on her body and her biological age? Will 16 years playing for England have taken its toll or kept her young and strong? Will she have to swop out the coffee for ginger tea?  

She talks to Katherine about her childhood, her decision to retire and how being a woman in a man’s world has meant she’s had to constantly prove herself. She now co-hosts The Overlap with Roy Keane, Gary Neville, Jamie Carragher and Ian Wright and she’s hoping their average of 55 will not have rubbed off on her biological age.  

Dr Nichola Conlon delves into Jill’s lifestyle and looks at how intense exercise affects our bodies and our biological age.   She talks about how over-exercising changes women’s hormones and the importance of nutrition and recovery, especially for women.