Disease arises as a result of your inner constitution or inherited factors, and what makes you unique in relationship to the many external factors impacting your health. An external factor in itself is not the cause of disease — otherwise, everyone would react the same way.

The true cause of disease lies in your individual susceptibility to that factor. For this reason, homeopaths treat your unique constitution as a whole.  By understanding your unique being, a homeopath can select a remedy that strengthens your constitution and mitigates your susceptibility to these factors.