People who suffer from allergies are well acquainted with immunoglobulin E (IgE). It is this class of antibodies that plays a key role in causing an allergy sufferer's immune system to overreact. Oncologists too are very familiar with IgE. Numerous in-depth studies have shown that those with raised levels of IgE are much less likely to suffer from certain types of cancer. Or in other words - allergy sufferers are at a lower risk of developing cancer.
