Overview

• According to the CDC, more than 1,200 Americans die annually from extreme heat, and heat-related heart deaths may more than double by 2045 if current trends continue.
• Forecasts call for record-breaking temperatures across the U.S. this week, elevating risks from mild heat stress to life-threatening heat stroke.
• Humidity impairs sweat evaporation, making the National Weather Service’s heat-index measure essential for accurate risk assessment.
• Certain heart medications, including beta blockers and diuretics, can amplify heat stress, prompting extra precautions for patients with cardiovascular conditions.
• Experts urge people to hydrate frequently, limit outdoor activities during peak heat, use cooling centers cautiously and check on older or disabled neighbors.