That is exactly the point that I was coming on to make. It would be a mistake to assume that because NICE found that one third of the people it looked at had no symptoms, those people could heave a sigh of relief and forget about asthma for ever. People—as I did—can have periods when they are symptom-free, but they still need regular reviews to ensure that it does not come back or suddenly get worse.
The Royal College of Physicians identified major avoidable factors in two thirds of cases where people died, which were about the constant monitoring and attention to detail that my hon. Friend the Member for Stevenage mentioned. It did not cite all the evidence, but it seems that there are two unstable types of asthma that are often resistant to treatment and that can be a contributory factor. We need more research, awareness and knowledge that it is a variable condition, and that people should therefore not make assumptions or be complacent.