Allergies are often perceived as conditions stemming from childhood predisposition, or even factors present before birth. However, allergist Kelly Colas asserts that anyone can develop a new allergy at any point in their life. This challenges the common assumption that allergies are solely rooted in early-life exposures. The potential for late-onset allergies highlights the complex nature of the immune system and its capacity for change. This suggests individuals aren’t necessarily “safe” from allergies simply because they haven’t experienced them previously. Further research is needed to understand the mechanisms driving this phenomenon and identify individuals at higher risk. Understanding this dynamic is crucial for effective allergy prevention and management across the lifespan.