A more sophisticated description would acknowledge the complexities and conditionalities of the immune system’s response. Rather than presenting it as a straightforward benefit from exposure, one could say: The human immune system operates on a principle akin to hormesis, where moderate challenges foster adaptive improvements, such as immunological memory and overall robustness. However, the response is not uniform but contingent on dosage, timing, individual health status, and genetic factors. Insufficient exposure may fail to trigger robust adaptive mechanisms, while excessive or repeated challenges could trigger detrimental outcomes like autoimmunity or overwhelming stress. Thus, while the system demonstrates antifragility under optimal conditions, this adaptability involves navigating a fine balance where both too little and too much stress can undermine its beneficial evolution.