nicola gilroy reports. up until covid, i had remained disease—free, perfectly healthy life, but covid literally destroyed me in the space of 12 hours. after nearly dying of covid—19, leaving hospital was something ricky never thought he would do, but for thousands like him, this is not the end of the story. my breathing is irregular, even today, it is not the same as it was. so maybe that's a long—term effect of covid. but no one knows why. one in five covid—19 sufferers have symptoms for five weeks or more, including fatigue, breathlessness, muscle ache and memory loss and equates to around 10,000 people in nottinghamshire alone. and it's the answer to that question that world leading researchers in nottingham are looking for, using the mri scanner in a uk first. so the mri scanner allows us to look at organs of the body, to allow us to look at the muscle, the brain, heart, lungs. uniquely, we are able to look at those organs during exercise. it is too simplistic to assume this was a patient does s