The Midwest has seen an increase in heat-related illnesses as temperatures have risen earlier than normal this spring. In Indiana, a 3-year-old girl died after being left in a hot car for two hours, and over 200 people at the Indianapolis 500 needed treatment for heat exhaustion. Around the same time in Chicago, the temperature reached 97 degrees, the hottest in five years. With summer temperatures forecast to be higher than average, people are advised to take precautions like staying indoors in air conditioning to avoid heat stroke and other illnesses.