未来一周，高温不退 45℃体感高温“烤”验河南

Group 1 - The core viewpoint of the articles highlights the severe heatwave affecting Henan, with temperatures expected to rise significantly, prompting health warnings and safety advisories [1][2][4] - The National Health Risk Alert was issued by the National Disease Control and Prevention Bureau and the China Meteorological Administration, marking the first national-level high-temperature health risk warning [4] - The forecast indicates that from July 4, temperatures in central and northern regions may exceed 40°C, with perceived temperatures potentially reaching above 45°C in some areas [2][4] Group 2 - The prolonged high humidity and heat pose health risks, increasing the likelihood of heatstroke and acute episodes of chronic diseases [4] - Specific regions, including northern Jiangsu, central Shandong, and eastern Henan, are identified as having extremely high health risk levels due to heat [4] - The articles emphasize the need for the public to stay informed about weather alerts and to take appropriate measures to mitigate health risks associated with extreme temperatures [4]