The temperature is rising and is expected to stay in the 90s for the next five days in the Stateline. Emergency Room workers are preparing for a steady stream of patients with heat related illnesses.
"Usually people start cramping, having diarrhea, abdominal cramps, almost like the flu," said David Miller, M.D. for Swedish American Emergency Room.
Not drinking enough water can also cause heat exhaustion, heat stroke and heat syncope.
"You need to drink water. A lot of people drink iced tea but they put sugar in their iced tea which also has caffeine, or pop which has caffeine and sugar. The caffeine and sugar actually dehydrates you because it's a diarrhetic and makes you urinate more so you're better off drinking water," said Miller.
Doctor Miller also recommends drinking water over sports drinks. But swimming in water won't protect us from heat stroke.
"In the pool they're cool that way but it's also drinking fluids. That will help. But they're also exposed to the sun so there are elements of sun stroke and things like that," said Miller.
Staying out of the sun is only half the battle. The temperature at night can actually cause more heat related illnesses.
"If it's still really hot and high humidity the house never got to cool off and the patients never got cooled off."
Besides elderly and outdoor workers, diabetics, alcoholics and people on antihistamines are also more susceptible to heat stroke.