As a nation, we are now living longer than ever before, but our bodies are not ageing well. Angela Rippon and Dr Chris Van Tulleken team up with scientists to turn back the clock on a group of volunteers, and demonstrate what can be done to reverse the ageing process. In this first episode, 51-year-old Patrick Luckie sees for himself how much damage his diet is doing to his heart, and 47 year-old Jenifer Tutty uses a radical new technique to cure her insomnia.