Myths vs facts: AllergieCheck | IgE-Antikörper Test and Stress

The AllergyCheck (IgE antibody test) measures specific IgE antibodies against allergens, indicating sensitization – not clinical allergy, and certainly not stress. A common myth is that stress 'causes' allergies or that the IgE test can reflect stress levels. In reality, stress can exacerbate allergic symptoms via neuroendocrine pathways (e.g., cortisol, histamine release), but it does not cause IgE sensitization. The test does not measure any stress marker. Evidence for a stress–allergy link is moderate (human-moderate), but the test itself is not a stress indicator. Many direct-to-consumer tests overstate the power of single biomarkers. If you want to assess stress, use validated methods like salivary cortisol or heart rate variability – not IgE. Bottom line: The AllergyCheck is useful for allergen identification, but not for stress diagnosis. Marketing often promises more than the science supports.