Fourteenyearold Luke talks to Chris about the heart problems he's had from birth. One of these was a hole in his heart, and through an animation, we see how the lack of oxygen flow is a tiring and draining thing indeed. Studying heart conditions in children. Dr Guido Pieles runs the research at Bristol University. Luke helps out by participating in these studies to find out how much exercise is safe for children with heart conditions. We get to look at a heart scanner which shows realtime heart
