HEAT STRESS

							 At least 300 deaths/year
 7421 deaths from 1979-1998
 1700 deaths in 1980 alone
 21 high school and college football player deaths
 since 1995
 Excessive sweat loss results in dehydration


 The body loses its ability to cool


 Increased blood flow to skin causes decrease in
  organ function
 HEAT RASH


 HEAT CRAMPS


 HEAT EXHAUSTION


 HEAT STROKE
 Caused by skin being constantly wet from sweat and
  plugging sweat glands
 Tiny raised red blistery rash
 Keep areas dry and clean
 Caused by excessive loss of electrolytes


 Early warning sign of heat stress


 Painful cramps usually in legs or abdomen


 Stop activity, hydrate, rest in cool place


 Get medical attention if condition continues
 The body’s response to excessive water and electrolyte
 loss

 Stop activity and seek treatment immediately
 The body’s cooling mechanism shuts down


 Over 20% that reach the heat stroke stage die even
 with medical attention
    HEAT EXHAUSTION           HEAT STROKE

 Skin is pale             Skin is red
 Excessive sweating
                           No sweating
 May faint but usually
                           Unconscious or
    conscious
                            incoherent
   Headache
   Nausea and vomiting
   Blurred vision
   Dizziness
 HEAT EXHAUSTION              HEAT STROKE

 Call 911                 Call 911
 Rest in cool place       Immediate, aggressive,
 Loosen and remove         effective cooling
  unnecessary clothing     DO NOT give anything
 Shower or sponge with     by mouth
  cool water               Transport to hospital
 Poor nutrition           Lack of acclimatization
 Poor physical condition  Over 40
 High and low % body      Illness (diabetes, asthma)
  fat                      Pregnancy
 Previous heat illness    Diet plans
 Air temperature
 Direct sunlight
 Radiant heat
 Humidity
 Little air movement
 Work intensity
 Work duration
 Location (roof, road, enclosure)
 Clothing (weight, impermeability)
 Respiratory protection
 Be watchful for symptoms (self and others)
 Properly hydrate (before, during, after)
 Get adequate rest
 Avoid alcohol, unnecessary medication, and caffeine