FALSE
Developing allergies in adulthood is relatively common, and in fact nearly half of adults with food allergies had those allergies start in adulthood. While it is very common for adult-onset allergies to happen in your 20s and 30s, perimenopause is a time when many women start to suffer new allergies or have increasingly problematic symptoms to existing allergies. This is caused by the interactions of estrogen and progesterone with the immune system, because estrogen and progesterone bind to the parts of the immune system that trigger allergic reactions.