The heat wave poses significant risks to vulnerable populations, including the elderly, children, and those without access to air conditioning. Prolonged exposure to high temperatures and limited nighttime cooling increase the likelihood of heat-related illnesses such as heat exhaustion and heat stroke. Approximately 90 million Americans are currently under extreme heat warnings or advisories, with tens of millions more under heat advisories. The heat dome's effects will be felt across much of the central and eastern U.S., creating hazardous conditions for outdoor activities and straining energy resources.