Summer is half over, but we can still get hurt from heat illnesses if we do not take caution. Everyone is different, and so are our body types and the ways our bodies function. There are three categorizes that heat illnesses are classified into which is: heat cramps, heat stroke and heat exhaustion. Age, pushing your body over its limit, lack of sleep, exposure to hot weather, health conditions, stimulants, drugs, are several factors that can cause you heat illnesses.