A Stanford study reveals major storms like Helene can cause excess deaths for over a decade, with 7,000 to 11,000 deaths attributed to storm aftermath. The study estimates 3.6 to 5.2 million American deaths since 1930 due to storms, exceeding deaths from motor vehicle accidents, infectious diseases, or war. The long-term impact includes economic strain, weakened social networks, and health care resource shifts, disproportionately affecting Black Americans and areas less accustomed to such disasters.