What role does Cortisol play in Allergie?

Cortisol, the primary glucocorticoid in humans, is secreted by the adrenal cortex and plays a key role in stress response and immune regulation. In allergies, cortisol acts through several mechanisms: it inhibits histamine release from mast cells, suppresses pro-inflammatory cytokine production, and reduces eosinophil activity. Acutely, cortisol can alleviate allergic symptoms such as swelling, itching, and inflammation – which explains the therapeutic use of corticosteroids in allergic conditions like asthma, hay fever, and atopic dermatitis. However, the role of endogenous cortisol is more complex. Chronic stress with persistently elevated cortisol levels can dysregulate the immune system, potentially enhancing or prolonging allergic reactions. Studies indicate that stress can promote allergic sensitization and worsen symptoms. The evidence is primarily human-observational, with moderate strength. Importantly, the provided context does not contain specific data on cortisol and allergies. This answer is based on general medical knowledge. Individual predictions are not possible; lifestyle factors and genetic predisposition play a much larger role than single hormone levels.