A possible complication of heatstroke is shock, which is a condition caused by a sudden loss of blood flow. Signs of shock include a very low blood pressure, blue lips and nails, and cool, clammy skin.

If you or others don't act quickly on the symptoms of heatstroke, you could die or experience damage to your brain or other vital organs. In response to heatstroke, these organs swell, and if you don't cool your body temperature quickly, the damage from this swelling could be permanent.

Sep. 02, 2011