According to Harvard Medical School Harvard Health Publications, there are no scientifically proven direct links between lifestyle and enhanced immune function. However, preliminary research regarding the effects of diet, exercise, age, psychological stress, herbal supplements and other factors on the immune system show interesting and promising results for those who want to build up an immune system after having lots of X-rays.
Harvard Medical School suggests a healthy lifestyle to help boost the immune system. A healthy lifestyle includes eating a healthy diet high in fruits, vegetables and whole grains and low in saturated fat, not smoking, exercising regularly, sleeping adequately, washing hands thoroughly and regularly getting screened for medical conditions. Taking daily multivitamins or mineral supplements may also have a beneficial effect on the immune system and the body's overall health.
Studies done on the nutrients selenium and zinc and vitamins A, B2, B6, C, D and E show that these supplements may be beneficial to the immune system and overall health. Herbal supplements such as aloe vera, astragalus membranes, echinacea, garlic, ginseng, glycyrrhiza glabra and probiotics have also drawn attention from researchers and may have connections to health benefits. Apart from the effects of dietary factors, the effects of stress on the immune system have also been studied. Many researchers, such as a research team from Ohio State University, report that stress and anxiety can reduce various aspects of the cellular immune response. Therefore, reducing short- and long-term stress may be beneficial to the immune system, notes Harvard Medical School.