While it is relatively easy to examine the health condition of organs such as the kidneys, heart, lungs or liver, it is relatively difficult to check the functionality of the immune system. This is primarily because the immune system is not a single organ. Rather, various organs and functional systems
of the body are involved in the structure of the immune system
, which complement each other and together ensure that the organism can effectively fight bacteria, viruses, fungi and parasites.
The control centre for the immune system is undoubtedly the intestine. This is where central processes take place that determine how well your body can stand up to pathogens. But the spleen, the lymphatic system, the thymus and the bone marrow are also supporting pillars of the immune system. To examine all the systems involved individually for their immunological performance
would be very time-consuming. After all, it is precisely the good interaction of all components that is decisive for a strong defence. Nevertheless, various tests can be used to check whether the immune system is not working as effectively as desired.