By Lucas Hellberg, Las Vegas Review-JournalAs temperatures in the Las Vegas Valley climbed to 110 degrees on a recent Wednesday afternoon, an elderly woman who had been outside became dizzy and then passed out. That’s far above the typical body temperature range of 96.4 to 98.5 degrees for adults 65 and older, according to the Cleveland Clinic. Rabia Nizamani, medical director of the University Medical Center Lions Burn Care Center, is photographed holding an infrared thermometer Tuesday, July 28, 2026, outside University Medical Center, in Las Vegas. (Benjamin Hager/Las Vegas Review-Journal/TNS)A max-cooling ER room is seen at MountainView Hospital on Wednesday, July 29, 2026, in Las Vegas. Morim added that every minute a patient’s temperature remains above about 104 degrees increases the risk of permanent injury.