Dr. David Gudis, otolaryngologist at NewYork-Presbyterian and Columbia, breaks down what hay fever, also known as allergic rhinitis, really is: an overreaction of the immune system to harmless triggers like pollen, pet dander, and dust. He explains why allergy seasons are getting longer, how allergies can affect sleep and mental health, and shares practical, evidence‑based strategies for managing allergies, so listeners can breathe easier this allergy season and beyond.