Central areas.: Superficial application of ice to areas of the body where large blood vessels are most superficial yields the greatest cooling. Groin and armpits are the two biggest; neck (sides) is next. Ice applied to the head, back of neck, or forehead often FEEL best to people even if the cooling effect isn't as great. Careful not to cause frostbite! Stay well hydrated and limit exertion.
Answered 7/20/2017
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Heat stroke : Ice is not recommended for heat stroke. The putative mechanism is that the vasoconstriction it induces may delay heat loss. Luke warm water is recommended to the entire body with more emphasis in the groin and Scilla where the deep blood vessels can help with heat dissipation
Answered 7/20/2017
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