| If not treated promptly, heat exhaustion may evolve into heatstroke, a deadly form of heat illness. |
| Worse, you may risk such dangerous conditions as heatstroke and heart failure. |
| Failure to arrest the process during heat exhaustion could lead to the more deadly condition of heatstroke. |
| Evidence of central nervous system dysfunction should trigger a diagnosis of heatstroke rather than heat exhaustion. |
| Feeling thirsty is the initial symptom of heatstroke, which reflects that the body is short of fluids. |
| As with heatstroke, hypothermia and frostbite victims should always be given medical help. |
