Read our Privacy noticeExercise can help restore the immune system post-Covid, reducing symptoms like tiredness, joint pain and other long-term effects, new research has found. Researchers believe that this is because exercise is most likely improving blood flow, which mobilises immune cells and allows them to better monitor for threats. Respiratory expert Dr Guido Vagheggini said: “Post-Covid syndrome affects people of all ages. “This research shows that people with post-Covid syndrome who are able to complete an exercise-based rehabilitation programme may experience benefits in their immune cell function. They may also be better at fighting Covid and other infections in the future.”open image in gallery The study looked at 31 patients who had been hospitalised for Covid ( PA )Covid can cause immune system dysfunction or dysregulation, which causes the immune system to attack the body, rather than protect it.