The National Weather Service predicts temperatures will reach past 90 degrees across most of the state. Combined with high humidity, the heat index in some areas will reach more than 100 degrees. Prolonged exposure to these conditions can lead to heat illnesses like heat exhaustion and heat stroke. There are three keys to staying safe in the heat: water, rest and shade. Remember that some people are at greater risk than others, especially the elderly, very young children, and those with respiratory conditions. Someone suffering from heat-related illness should be moved to a cool place to rest and drink water or a non-carbonated sports drink. Cool, wet washcloths or ice packs will help with recovery. If there is no improvement, body temperature won’t go down, or the person won’t take fluids, go to the emergency room immediately or call 911. Hoosiers attending outdoor events this summer should know where first aid services are available in case someone needs help.