US fertility rate hits record low, seasonal allergies on the rise

US fertility rate hits record low, seasonal allergies on the rise

Fox News Senior Medical Analyst Dr. Marc Siegel discusses the alarming decline in the U.S. fertility rate to a record low of 1.56 children per couple, highlighting impacts on population size. Dr. Siegel then explains the surge in seasonal allergies nationwide due to a cold winter and wet spring, emphasizing the "hygiene hypothesis" in immune system development.